Euronext is the main stock exchange of the Eurozone and the 7th world largest by market capitalisation.[29]Foreign investments made in the European Union total $5.1 trillion in 2012, while the E.U's investments in foreign countries total 9.1 trillion, by far the highest domestic and foreign investments in the world.[30][31]

Since the beginning of the public debt crisis in 2009, opposite economic situations have emerged between Southern Europe on one hand, and Central and Northern Europe on the other hand: a higher unemployment rate and public debt in the Mediterranean countries with the exeption of Malta, and a lower unemployment rate with higher GDP growth rate in the Eastern and in Northern member countries. In 2015, public debt in the European Union was 85% of GDP, with disparities between the lowest rate, Estonia with 9.7%, and the highest, Greece with 176%.[32]

The Eurozone (dark blue) represents 340 million people. The euro is the second-largest reserve currency in the world.

Beginning in the year 1999 with some EU member states, now 19 out of 28 EU states use the euro as official currency in a currency union, the remaining 9 states continued to use their own currency with the possibility to join the euro later. The euro is also the most widely used currency in the EU.

Denmark and the United Kingdom, not members of the eurozone, have special opt-outs concerning the later joining of the euro. Also, Sweden can effectively opt out by choosing when or whether to join the European Exchange Rate Mechanism, which is the preliminary step towards joining. The remaining states are committed to join the euro through their Treaties of Accession.

Starting with Greece in 2009, five of the 19 eurozone states have been struggling with a sovereign debt crisis, by many called the European debt crisis. All these states started reforms and got bailout packages (Greece, Ireland, Portugal, Spain, Cyprus). As of 2015, all countries but Greece have recovered from their debt crisis. Other non-eurozone states also experienced a debt crisis and also went through successful bailout programmes, i.e. Hungary, Romania and Latvia (the latter before it joined the eurozone).[33]

The services sector is by far the most important sector in the European Union, making up 74.7% of GDP, compared to the manufacturing industry with 23.8% of GDP and agriculture with only 1.5% of GDP.[35]

Financial services are well developed within the Single Market of the Union. Companies have a greater reliance on bank lending than in the United States, although a shift towards companies raising more funding through capital markets is planned through the Capital Markets Union initiative.[36][37][38] Many EU cities are financial centres, nonetheless financial institutions and companies located in the United Kingdom provide significant financial services to companies located within the EU.[39][40][41] According to the Global Financial Centres Index, after the United Kingdom has left the EU in March 2019, the two largest financial centres in Europe, London and Zurich, will be outside the European Union. While the two largest centres within the EU will be Frankfurt and Luxembourg City.[42] London is also a leading international centre for professional services which are sold to clients across the EU.

The agricultural sector is supported by subsidies from the European Union in the form of the Common Agricultural Policy (CAP). In 2013 this represented approximately €45billion (less than 33% of the overall budget of €148billion) of the EU's total spending,[43] it was used originally to guarantee a minimum price for farmers in the EU. This is criticised as a form of protectionism, inhibiting trade, and damaging developing countries; one of the most vocal opponents is the UK, the second largest economy within the bloc, which has repeatedly refused to give up the annual UK rebate unless the CAP undergoes significant reform; France, the biggest beneficiary of the CAP and the bloc's third largest economy, is its most vocal proponent. The CAP is however witnessing substantial reform; in 1985, around 70% of the EU budget was spent on agriculture. In 2011, direct aid to farmers and market-related expenditure amount to just 30% of the budget, and rural development spending to 11%. By 2011, 90% of direct support had become non-trade-distorting (not linked to production) as reforms have continued to be made to the CAP, its funding and its design.[44]

The European Union is a major tourist destination, attracting visitors from outside of the Union and citizens travelling inside it. Internal tourism is made more convenient by the Schengen treaty and the euro. All citizens of the European Union are entitled to travel to any member state without the need of a visa.

France is the world's number one tourist destination for international visitors, followed by Spain, Italy, the United Kingdom and Germany, it is worth noting, however, that a significant proportion of international visitors to EU countries are from other member states.

London, the capital of the United Kingdom is also the world's most visited city (16.9 million visitors in 2012) and the highest in tourism receipts, shortly followed by Paris with 16 million visitors.[45]

The European Union has uranium, coal, oil, and natural gas reserves. There are six oil producers in the European Union, primarily in North Sea oilfields, the United Kingdom is by far the largest producer; Denmark, Germany, Italy, Romania and the Netherlands all produce oil. If it is treated as a single unit, which is not conventional in the oil markets, the European Union is the 19th largest producer of oil in the world, producing 1,241,370 (2013) barrels a day.[citation needed]

It is the world's second largest consumer of oil, consuming much more than it can produce, at 12,790,000 (2013) barrels a day. Much of the difference comes from Russia and the Caspian Sea basin. All countries in the EU have committed to the Kyoto Protocol, and the European Union is one of its biggest proponents, the European Commission published proposals for the first comprehensive EU energy policy on 10 January 2007.[citation needed]

The European Union's member states are the birthplace of many of the world's largest leading multinational companies, and home to its global headquarters, among these are distinguished companies ranked first in the world within their industry/sector, like Allianz, which is the largest financial service provider in the world by revenue; WPP plc which is the world's largest advertising agency by revenue; Air France-KLM, which is the largest airline company in the world in terms of total operating revenues; Amorim, which is the world's largest cork-processing and cork producer company; ArcelorMittal, which is the largest steel company in the world; Inditex which is the biggest fashion group in the world; Groupe Danone, which has the world leadership in the dairy products market.[citation needed]

Many other European companies rank among the world's largest companies in terms of turnover, profit, market share, number of employees or other major indicators. A considerable number of EU-based companies are ranked among the worlds' top-ten within their sector of activity. Europe is also home to many prestigious car companies such as BMW, Ferrari, Jaguar, Land Rover, Maserati, Mercedes, Porsche, as well as volume manufacturers such as Fiat, PSA group, Renault and Volkswagen.

The following is a list of the largest EU based stock market listed companies in 2016, the ordered by revenue in millions of US Dollars and is based on the Fortune Global 500.

The twelve new member states of the European Union have enjoyed a higher average percentage growth rate than their elder members of the EU. Slovakia has the highest GDP growth in the period 2005–2015 among all countries of the European Union (See Tatra Tiger). Notably the Baltic states have achieved high GDP growth, with Latvia topping 11%, close to China, the world leader at 9% on average for the past 25 years (though these gains have been in great part cancelled by the late-2000s recession).

Reasons for this growth include government commitments to stable monetary policy, export-oriented trade policies, low flat-tax rates and the utilisation of relatively cheap labour; in 2015 Ireland had the highest GDP growth of all the states in EU (26.3%). The current map of EU growth is one of huge regional variation, with the larger economies suffering from stagnant growth and the new nations enjoying sustained, robust economic growth.

Although EU28 GDP is on the increase, the percentage of gross world product is decreasing because of the emergence of economies such as China, India and Brazil.

The EU seasonally adjusted unemployment rate was 7.8% in April 2017.[49] The euro area unemployment rate was 9.3%.[49] Among the member states, the lowest unemployment rates were recorded in the Czech Republic (3.2%), Germany (3.9%) and Malta (4.1%), and the highest in Spain (17.8%) and Greece (22.5% in March 2017).[49]

The following table shows the history of the unemployment rate for all European Union member states :

The European Union is the largest exporter in the world[57] and as of 2008 the largest importer of goods and services.[58][59] Internal trade between the member states is aided by the removal of barriers to trade such as tariffs and border controls; in the eurozone, trade is helped by not having any currency differences to deal with amongst most members.[60]

The European Union Association Agreement does something similar for a much larger range of countries, partly as a so-called soft approach ('a carrot instead of a stick') to influence the politics in those countries. The European Union represents all its members at the World Trade Organization (WTO), and acts on behalf of member states in any disputes. When the EU negotiates trade related agreement outside the WTO framework, the subsequent agreement must be approved by each individual EU member.[60]

Comparing the richest areas of the EU can be a difficult task, this is because the NUTS 1 & 2 regions are not homogenous, some of them being very large regions, such as NUTS-1 Hesse (21,100 km²) or NUTS-1 Île-de-France (12,011 km²), whilst other NUTS regions are much smaller, for example NUTS-1 Hamburg (755 km²) or NUTS-1 Greater London (1,580 km²). An extreme example is Finland, which is divided for historical reasons into mainland Finland with 5.3 million inhabitants and Åland, an autonomous archipelago with a population of 27,000, or about the population of a small Finnish city.

One problem with this data is that some areas, including Greater London, are subject to a large number of commuters coming into the area, thereby artificially inflating the figures, it has the effect of raising GDP but not altering the number of people living in the area, inflating the GDP per capita figure. Similar problems can be produced by a large number of tourists visiting the area, the data is used to define regions that are supported with financial aid in programs such as the European Regional Development Fund. The decision to delineate a Nomenclature of Territorial Units for Statistics (NUTS) region is to a large extent arbitrary (i.e. not based on objective and uniform criteria across Europe), and is decided at European level (See also: Regions of the European Union).

The 10 NUTS-1 and NUTS-2 regions with the highest GDP per capita are almost all, except two, in the first fifteen-member states: Prague and Bratislava are the only ones in the 13 new member states that joined in May 2004, January 2007 and July 2013. The leading regions in the ranking of NUTS-2 regional GDP per inhabitant in 2016 were Inner London-West in the United Kingdom (611% of the average), the Grand Duchy of Luxembourg (257%) and Southern and Eastern Ireland (217%). Figures for these three regions, however, are artificially inflated by the commuters who do not reside in these regions ("Net commuter inflows in these regions push up production to a level that could not be achieved by the resident active population on its own, the result is that GDP per inhabitant appears to be overestimated in these regions and underestimated in regions with commuter outflows."[63]).

Another example of artificial inflation is Groningen, the calculated GDP per capita is very high because of the large natural gas reserves in this region, but Groningen is one of the poorest parts in the Netherlands. Among the 19 NUTS-2 regions exceeding the 150% level, five were in Germany, three in the United Kingdom, two in Austria, one each in Belgium, the Czech republic, Denmark, France, Ireland, the Netherlands, Slovakia and Sweden, as well as in the single region Grand Duchy of Luxembourg, the NUTS Regulation lays down a minimum population size of 3 million and a maximum size of 7 million for the average NUTS-1 region, whereas a minimum of 800,000 and a maximum of 3 million for NUTS-2 regions.¹[64] This definition, however, is not respected by Eurostat. E.g.: the région of Île-de-France, with 11.6 million inhabitants, is treated as a NUTS-2 region, while the stateFree Hanseatic City of Bremen, with only 664,000 inhabitants, is treated as a NUTS-1 region.

Among the ten lowest regions in the ranking in 2016 most were in Bulgaria, with the lowest figure recorded in Severozapaden, among the 21 regions below the 50% level, five were in Bulgaria and Poland each, four in Hungary, three each in Romania and Greece, and one in France.[63]

^"The Bank of England's approach to the authorisation and supervision of international banks, insurers and central counterparties". Bank of England. Retrieved 2018-03-02. The UK’s financial sector also brings substantial benefits to EU households and firms, allowing them to access a broad range of services efficiently and reliably. UK-located banks underwrite around half of the debt and equity issued by EU companies. UK-located banks are counterparty to over half of the over-the-counter (OTC) interest rate derivatives traded by EU companies and banks, as many as 30 million EEA policyholders are insured through a UK-based insurer. Central counterparties (CCPs) located in the United Kingdom provide services to EU clients in a range of markets. UK-located asset managers account for 37% of all assets managed in Europe.

^ One region may be classified by Eurostat as a NUTS-1, NUTS-2 as well as a NUTS-3 region. Several NUTS-1 regions are also classified as NUTS-2 regions such as Brussels-Capital or Ile-de-France. Many countries are only classified as a single NUTS-1 and a single NUTS-2 region such as Latvia, Lithuania, Luxemburg and (although over 3 million inhabitants) Denmark.

1.
Frankfurt
–
The city is at the centre of the larger Frankfurt Rhine-Main Metropolitan Region, which has a population of 5.8 million and is Germanys second-largest metropolitan region after Rhine-Ruhr. Since the enlargement of the European Union in 2013, the centre of the EU is about 40 km to the east of Frankfurts CBD. Frankfurt is culturally and ethnically diverse, with half of the population. A quarter of the population are foreign nationals, including many expatriates, Frankfurt is an alpha world city and a global hub for commerce, culture, education, tourism and traffic. Its the site of many global and European headquarters, Frankfurt Airport is among the worlds busiest. Automotive, technology and research, services, consulting, media, Frankfurts DE-CIX is the worlds largest internet exchange point. Messe Frankfurt is one of the worlds largest trade fairs, major fairs include the Frankfurt Motor Show, the worlds largest motor show, the Music Fair, and the Frankfurt Book Fair, the worlds largest book fair. Frankfurt is home to educational institutions, including the Goethe University, the UAS, the FUMPA. Its renowned cultural venues include the concert hall Alte Oper, Europes largest English Theatre and many museums, Frankfurts skyline is shaped by some of Europes tallest skyscrapers. In sports, the city is known as the home of the top football club Eintracht Frankfurt, the basketball club Frankfurt Skyliners, the Frankfurt Marathon. Its the seat of German sport unions for Olympics, football, Frankfurt is the largest financial centre in continental Europe. It is home to the European Central Bank, Deutsche Bundesbank, Frankfurt Stock Exchange, the Frankfurt Stock Exchange is one of the worlds largest stock exchanges by market capitalization and accounts for more than 90 percent of the turnover in the German market. Frankfurt is considered a city as listed by the GaWC groups 2012 inventory. Among global cities it was ranked 10th by the Global Power City Index 2011, among financial centres it was ranked 8th by the International Financial Centers Development Index 2013 and 9th by the Global Financial Centres Index 2013. Its central location within Germany and Europe makes Frankfurt a major air, rail, Frankfurt Airport is one of the worlds busiest international airports by passenger traffic and the main hub for Germanys flag carrier Lufthansa. Frankfurter Kreuz, the Autobahn interchange close to the airport, is the most heavily used interchange in the EU, in 2011 human-resource-consulting firm Mercer ranked Frankfurt as seventh in its annual Quality of Living survey of cities around the world. According to The Economist cost-of-living survey, Frankfurt is Germanys most expensive city, Frankfurt has many high-rise buildings in the city centre, forming the Frankfurt skyline. It is one of the few cities in the European Union to have such a skyline and because of it Germans sometimes refer to Frankfurt as Mainhattan, the other well known and obvious nickname is Bankfurt

2.
European Central Bank
–
The European Central Bank is the central bank for the euro and administers monetary policy of the eurozone, which consists of 19 EU member states and is one of the largest currency areas in the world. It is one of the worlds most important central banks and is one of the seven institutions of the European Union listed in the Treaty on European Union, the capital stock of the bank is owned by the central banks of all 28 EU member states. The Treaty of Amsterdam established the bank in 1998, and it is headquartered in Frankfurt, Germany. As of 2015 the President of the ECB is Mario Draghi, former governor of the Bank of Italy, former member of the World Bank, the bank primarily occupied the Eurotower prior to, and during, the construction of the new headquarters. The primary objective of the ECB, mandated in Article 2 of the Statute of the ECB, is to price stability within the Eurozone. The ECB has, under Article 16 of its Statute, the right to authorise the issuance of euro banknotes. Member states can issue euro coins, but the amount must be authorised by the ECB beforehand, the ECB is governed by European law directly, but its set-up resembles that of a corporation in the sense that the ECB has shareholders and stock capital. Its capital is €11 billion held by the central banks of the member states as shareholders. The initial capital allocation key was determined in 1998 on the basis of the population and GDP. Shares in the ECB are not transferable and cannot be used as collateral, the European Central Bank is the de facto successor of the European Monetary Institute. The EMI itself took over from the earlier European Monetary Co-operation Fund, the bank was the final institution needed for EMU, as outlined by the EMU reports of Pierre Werner and President Jacques Delors. It was established on 1 June 1998, the first President of the Bank was Wim Duisenberg, the former president of the Dutch central bank and the European Monetary Institute. The French argued that since the ECB was to be located in Germany and this was opposed by the German, Dutch and Belgian governments who saw Duisenberg as a guarantor of a strong euro. Tensions were abated by an agreement in which Duisenberg would stand down before the end of his mandate. Trichet replaced Duisenberg as President in November 2003, there had also been tension over the ECBs Executive Board, with the United Kingdom demanding a seat even though it had not joined the Single Currency. Under pressure from France, three seats were assigned to the largest members, France, Germany, and Italy, Spain also demanded and obtained a seat. Despite such a system of appointment the board asserted its independence early on in resisting calls for interest rates, when the ECB was created, it covered a Eurozone of eleven members. On 1 December 2009, the Treaty of Lisbon entered into force, ECB according to the article 13 of TEU, on 1 November 2011, Mario Draghi replaced Jean-Claude Trichet as President of the ECB

3.
Euro
–
Outside of Europe, a number of overseas territories of EU members also use the euro as their currency. Additionally,210 million people worldwide as of 2013 use currencies pegged to the euro, the euro is the second largest reserve currency as well as the second most traded currency in the world after the United States dollar. The name euro was adopted on 16 December 1995 in Madrid. The euro was introduced to world markets as an accounting currency on 1 January 1999. While the euro dropped subsequently to US$0.8252 within two years, it has traded above the U. S. dollar since the end of 2002, peaking at US$1.6038 on 18 July 2008. In July 2012, the euro fell below US$1.21 for the first time in two years, following concerns raised over Greek debt and Spains troubled banking sector, as of 26 March 2017, the euro–dollar exchange rate stands at ~ US$1.07. The euro is managed and administered by the Frankfurt-based European Central Bank, as an independent central bank, the ECB has sole authority to set monetary policy. The Eurosystem participates in the printing, minting and distribution of notes and coins in all states. The 1992 Maastricht Treaty obliges most EU member states to adopt the euro upon meeting certain monetary and budgetary convergence criteria, all nations that have joined the EU since 1993 have pledged to adopt the euro in due course. Since 5 January 2002, the central banks and the ECB have issued euro banknotes on a joint basis. Euro banknotes do not show which central bank issued them, Eurosystem NCBs are required to accept euro banknotes put into circulation by other Eurosystem members and these banknotes are not repatriated. The ECB issues 8% of the value of banknotes issued by the Eurosystem. In practice, the ECBs banknotes are put into circulation by the NCBs and these liabilities carry interest at the main refinancing rate of the ECB. The euro is divided into 100 cents, in Community legislative acts the plural forms of euro and cent are spelled without the s, notwithstanding normal English usage. Otherwise, normal English plurals are used, with many local variations such as centime in France. All circulating coins have a side showing the denomination or value. Due to the plurality in the European Union, the Latin alphabet version of euro is used. For the denominations except the 1-, 2- and 5-cent coins, beginning in 2007 or 2008 the old map is being replaced by a map of Europe also showing countries outside the Union like Norway

4.
United States dollar
–
The United States dollar is the official currency of the United States and its insular territories per the United States Constitution. It is divided into 100 smaller cent units, the circulating paper money consists of Federal Reserve Notes that are denominated in United States dollars. The U. S. dollar was originally commodity money of silver as enacted by the Coinage Act of 1792 which determined the dollar to be 371 4/16 grain pure or 416 grain standard silver, the currency most used in international transactions, it is the worlds primary reserve currency. Several countries use it as their currency, and in many others it is the de facto currency. Besides the United States, it is used as the sole currency in two British Overseas Territories in the Caribbean, the British Virgin Islands and Turks and Caicos Islands. A few countries use the Federal Reserve Notes for paper money, while the country mints its own coins, or also accepts U. S. coins that can be used as payment in U. S. dollars. After Nixon shock of 1971, USD became fiat currency, Article I, Section 8 of the U. S. Constitution provides that the Congress has the power To coin money, laws implementing this power are currently codified at 31 U. S. C. Section 5112 prescribes the forms in which the United States dollars should be issued and these coins are both designated in Section 5112 as legal tender in payment of debts. The Sacagawea dollar is one example of the copper alloy dollar, the pure silver dollar is known as the American Silver Eagle. Section 5112 also provides for the minting and issuance of other coins and these other coins are more fully described in Coins of the United States dollar. The Constitution provides that a regular Statement and Account of the Receipts and that provision of the Constitution is made specific by Section 331 of Title 31 of the United States Code. The sums of money reported in the Statements are currently being expressed in U. S. dollars, the U. S. dollar may therefore be described as the unit of account of the United States. The word dollar is one of the words in the first paragraph of Section 9 of Article I of the Constitution, there, dollars is a reference to the Spanish milled dollar, a coin that had a monetary value of 8 Spanish units of currency, or reales. In 1792 the U. S. Congress passed a Coinage Act, Section 20 of the act provided, That the money of account of the United States shall be expressed in dollars, or units. And that all accounts in the offices and all proceedings in the courts of the United States shall be kept and had in conformity to this regulation. In other words, this act designated the United States dollar as the unit of currency of the United States, unlike the Spanish milled dollar the U. S. dollar is based upon a decimal system of values. Both one-dollar coins and notes are produced today, although the form is significantly more common

5.
World Trade Organization
–
The World Trade Organization is an intergovernmental organization which regulates international trade. The WTO officially commenced on 1 January 1995 under the Marrakesh Agreement, signed by 123 nations on 15 April 1994, replacing the General Agreement on Tariffs and Trade, most of the issues that the WTO focuses on derive from previous trade negotiations, especially from the Uruguay Round. The WTO is attempting to complete negotiations on the Doha Development Round, as of June 2012, the future of the Doha Round remained uncertain, the work programme lists 21 subjects in which the original deadline of 1 January 2005 was missed, and the round is still incomplete. This impasse has made it impossible to launch new WTO negotiations beyond the Doha Development Round, as a result, there have been an increasing number of bilateral free trade agreements between governments. As of July 2012, there were various groups in the WTO system for the current agricultural trade negotiation which is in the condition of stalemate. The WTOs current Director-General is Roberto Azevêdo, who leads a staff of over 600 people in Geneva, a trade facilitation agreement, part of the Bali Package of decisions, was agreed by all members on 7 December 2013, the first comprehensive agreement in the organizations history. Seven rounds of negotiations occurred under GATT, the first real GATT trade rounds concentrated on further reducing tariffs. Then, the Kennedy Round in the mid-sixties brought about a GATT anti-dumping Agreement, because these plurilateral agreements were not accepted by the full GATT membership, they were often informally called codes. Several of these codes were amended in the Uruguay Round, only four remained plurilateral, but in 1997 WTO members agreed to terminate the bovine meat and dairy agreements, leaving only two. Well before GATTs 40th anniversary, its members concluded that the GATT system was straining to adapt to a new globalizing world economy. In response to the problems identified in the 1982 Ministerial Declaration, the GATT still exists as the WTOs umbrella treaty for trade in goods, updated as a result of the Uruguay Round negotiations. GATT1994 is not however the only legally binding agreement included via the Final Act at Marrakesh, the highest decision-making body of the WTO is the Ministerial Conference, which usually meets every two years. It brings together all members of the WTO, all of which are countries or customs unions, the Ministerial Conference can take decisions on all matters under any of the multilateral trade agreements. When agricultural export subsidies were agreed to be phased out and adoption of the European Unions Everything, the WTO launched the current round of negotiations, the Doha Development Round, at the fourth ministerial conference in Doha, Qatar in November 2001. This was to be an effort to make globalization more inclusive and help the worlds poor, particularly by slashing barriers. The initial agenda comprised both further trade liberalization and new rule-making, underpinned by commitments to strengthen substantial assistance to developing countries. Among the various functions of the WTO, these are regarded by analysts as the most important and it provides a forum for negotiations and for settling disputes. Another priority of the WTO is the assistance of developing, least-developed and low-income countries in transition to adjust to WTO rules and disciplines through technical cooperation and training

6.
G-20 major economies
–
The G20 is an international forum for the governments and central bank governors from 20 major economies. It was founded in 1999 with the aim of studying, reviewing and it seeks to address issues that go beyond the responsibilities of any one organization. The EU is represented by the European Commission and by the European Central Bank, collectively, the G20 economies account for around 85% of the gross world product, 80% of world trade, and two-thirds of the world population. Since its inception, the G20s membership policies have been criticized by numerous intellectuals, the heads of the G20 nations met semi-annually at G20 summits between 2009 and 2010. Since the November 2011 Cannes summit, all G20 summits have been held annually, the G20 superseded the G33, and was foreshadowed at the Cologne Summit of the G7 in June 1999, but was only formally established at the G7 Finance Ministers meeting on 26 September 1999. The inaugural meeting took place on 15–16 December 1999 in Berlin, Canadian finance minister Paul Martin was chosen to be the first chairman and German finance minister Hans Eichel hosted the inaugural meeting. According to researchers at the Brookings Institution, the group was founded primarily at the initiative of Eichel, however, some sources identify the G20 as a joint creation of Germany and the United States. Though the G20s primary focus is global economic governance, the themes of its summits vary from year to year, for example, the theme of the 2006 G20 ministerial meeting was Building and Sustaining Prosperity. Trevor A. Manuel, the South African Minister of Finance, was the chairperson of the G20 when South Africa hosted the secretariat in 2007, Spain and the Netherlands were included in the summit by French invitation. Despite lacking any formal ability to enforce rules, the G20s prominent membership gives it a strong input on global policy, however, there remain disputes over the legitimacy of the G20, and criticisms of its organisation and the efficacy of its declarations. After the 2008 debut summit in Washington, D. C, G20 leaders met twice a year in London and Pittsburgh in 2009, Toronto and Seoul in 2010. Since 2011, when France chaired and hosted the G20, the summits have been held once a year. The summit in 2016 was held in China and the in 2017 in Baden-Baden, a number of other ministerial-level G20 meetings have been held since 2010. In March 2014, Australian Foreign Minister Julie Bishop, as host of the 2014 G20 summit in Brisbane, Germany will be hosting the 2017 summit, while Argentina will be the host in 2018. To decide which member nation gets to chair the G20 leaders meeting for a given year, each group holds a maximum of four nations. This system has been in place since 2010, when South Korea, the table below lists the nations groupings, The G20 operates without a permanent secretariat or staff. The groups chair rotates annually among the members and is selected from a different regional grouping of countries, the chair is part of a revolving three-member management group of past, present and future chairs, referred to as the Troika. The incumbent chair establishes a temporary secretariat for the duration of its term, the role of the Troika is to ensure continuity in the G20s work and management across host years

7.
Group of Seven
–
The Group of 7 is a group consisting of Canada, France, Germany, Italy, Japan, the United Kingdom, and the United States. The European Union is also represented within the G7 and these countries are the seven major advanced economies as reported by the International Monetary Fund, the G7 countries represent more than 64% of the net global wealth. A very high net national wealth and a very high Human Development Index are the requirements to be a member of this group. The G7 countries also represent 46% of the global GDP evaluated at market exchange rates, the 42nd G7 summit was held in Japan in May 2016. Other recent G7 meetings include that of May 2013 in Aylesbury, United Kingdom with a meeting in The Hague. The G7s precursor was the Group of Six, the intent was to discuss current world issues in a frank and informal manner. The G6 followed an unofficial gathering starting in 1974 of senior officials from the United States. They were called the Library group or the Group of Five because they met informally in the White House Library in Washington, the Library Group were the top five of the worlds then leading economies as ranked by per capita GDP. Canada became the member to begin attending the summits in 1976. Following 1994s G7 summit in Naples, Russian officials held meetings with leaders of the G7 after the groups summits. This informal arrangement was dubbed the Political 8 – or, colloquially and it was seen as a way to encourage Yeltsins capitalist reforms. After the 1997 meeting Russia was formally invited to the meeting and formally joined the group in 1998, resulting in a new governmental political forum. However Russia was ejected from the group in 2014 following the Russian annexation of Crimea and its goal was fine tuning of short term economic policies among participant countries to monitor developments in the world economy and assess economic policies. Since 1975, the group meets annually on summit site to discuss economic policies, since 1987, in 1996, the G7 launched an initiative for the 42 heavily indebted poor countries. In 1999 the G7 announced their plan to cancel 90% of bilateral, in 2005 the G7 announced, debt reductions of up to 100% to be negotiated on a case by case basis. In 2008 the G7 met twice in Washington, D. C. to discuss the financial crisis of 2007-2010. The group of finance ministers pledged to take all steps to stem the crisis. On March 2,2014, the G7 condemned the Russian Federations violation of the sovereignty and this was the first G7 meeting neither taking place in a member nation nor having the host leader participating in the meeting

8.
Gross domestic product
–
Gross Domestic Product is a monetary measure of the market value of all final goods and services produced in a period. Nominal GDP estimates are used to determine the economic performance of a whole country or region. The OECD defines GDP as a measure of production equal to the sum of the gross values added of all resident and institutional units engaged in production. ”An IMF publication states that GDP measures the monetary value of final goods and services - that is. Total GDP can also be broken down into the contribution of industry or sector of the economy. The ratio of GDP to the population of the region is the per capita GDP. William Petty came up with a concept of GDP to defend landlords against unfair taxation during warfare between the Dutch and the English between 1652 and 1674. Charles Davenant developed the method further in 1695, the modern concept of GDP was first developed by Simon Kuznets for a US Congress report in 1934. In this report, Kuznets warned against its use as a measure of welfare, after the Bretton Woods conference in 1944, GDP became the main tool for measuring a countrys economy. The switch from GNP to GDP in the US was in 1991, the history of the concept of GDP should be distinguished from the history of changes in ways of estimating it. The value added by firms is relatively easy to calculate from their accounts, but the value added by the sector, by financial industries. GDP can be determined in three ways, all of which should, in principle, give the same result and they are the production approach, the income approach, or the expenditure approach. The most direct of the three is the approach, which sums the outputs of every class of enterprise to arrive at the total. The income approach works on the principle that the incomes of the factors must be equal to the value of their product. This approach mirrors the OECD definition given above, deduct intermediate consumption from gross value to obtain the gross value added. Gross value added = gross value of output – value of intermediate consumption, value of output = value of the total sales of goods and services plus value of changes in the inventories. The sum of the value added in the various economic activities is known as GDP at factor cost. GDP at factor cost plus indirect taxes less subsidies on products = GDP at producer price, for measuring output of domestic product, economic activities are classified into various sectors. Subtracting each sectors intermediate consumption from gross output gives the GDP at factor cost, adding indirect tax minus subsidies in GDP at factor cost gives the GDP at producer prices

9.
Purchasing power parity
–
Observed deviations of the exchange rate from purchasing power parity are measured by deviations of the real exchange rate from its PPP value of 1. PPP exchange rates help to minimize misleading international comparisons that can arise with the use of exchange rates. For example, suppose that two countries produce the same amounts of goods as each other in each of two different years. But if one countrys GDP is converted into the countrys currency using PPP exchange rates instead of observed market exchange rates. The idea originated with the School of Salamanca in the 16th century, the best-known purchasing power adjustment is the Geary–Khamis dollar. The real exchange rate is equal to the nominal exchange rate. If purchasing power parity held exactly, then the exchange rate would always equal one. However, in practice the exchange rates exhibit both short run and long run deviations from this value, for example due to reasons illuminated in the Balassa–Samuelson theorem. There can be marked differences between purchasing power adjusted incomes and those converted via market exchange rates. This discrepancy has large implications, for instance, when converted via the exchange rates GDP per capita in India is about US$1,965 while on a PPP basis it is about US$7,197. At the other extreme, Denmarks nominal GDP per capita is around US$62,100, the purchasing power parity exchange rate serves two main functions. PPP exchange rates can be useful for making comparisons between countries because they stay fairly constant from day to day or week to week and only change modestly, if at all, from year to year. The PPP exchange-rate calculation is controversial because of the difficulties of finding comparable baskets of goods to compare purchasing power across countries, people in different countries typically consume different baskets of goods. It is necessary to compare the cost of baskets of goods and this is a difficult task because purchasing patterns and even the goods available to purchase differ across countries. Thus, it is necessary to make adjustments for differences in the quality of goods, furthermore, the basket of goods representative of one economy will vary from that of another, Americans eat more bread, Chinese more rice. Hence a PPP calculated using the US consumption as a base will differ from that calculated using China as a base, additional statistical difficulties arise with multilateral comparisons when more than two countries are to be compared. Various ways of averaging bilateral PPPs can provide a stable multilateral comparison. These are all issues of indexing, as with other price indices there is no way to reduce complexity to a single number that is equally satisfying for all purposes

10.
Agriculture
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Agriculture is the cultivation and breeding of animals, plants and fungi for food, fiber, biofuel, medicinal plants and other products used to sustain and enhance human life. Agriculture was the key development in the rise of human civilization. The study of agriculture is known as agricultural science, the history of agriculture dates back thousands of years, and its development has been driven and defined by greatly different climates, cultures, and technologies. Industrial agriculture based on large-scale monoculture farming has become the dominant agricultural methodology, genetically modified organisms are an increasing component of agriculture, although they are banned in several countries. Agricultural food production and water management are increasingly becoming global issues that are fostering debate on a number of fronts, the major agricultural products can be broadly grouped into foods, fibers, fuels, and raw materials. Specific foods include cereals, vegetables, fruits, oils, meats, fibers include cotton, wool, hemp, silk and flax. Raw materials include lumber and bamboo, other useful materials are also produced by plants, such as resins, dyes, drugs, perfumes, biofuels and ornamental products such as cut flowers and nursery plants. The word agriculture is a late Middle English adaptation of Latin agricultūra, from ager, field, Agriculture usually refers to human activities, although it is also observed in certain species of ant, termite and ambrosia beetle. To practice agriculture means to use resources to produce commodities which maintain life, including food, fiber, forest products, horticultural crops. This definition includes arable farming or agronomy, and horticulture, all terms for the growing of plants, even then, it is acknowledged that there is a large amount of knowledge transfer and overlap between silviculture and agriculture. In traditional farming, the two are often combined even on small landholdings, leading to the term agroforestry, Agriculture began independently in different parts of the globe, and included a diverse range of taxa. At least 11 separate regions of the Old and New World were involved as independent centers of origin, wild grains were collected and eaten from at least 105,000 years ago. Pigs were domesticated in Mesopotamia around 15,000 years ago, rice was domesticated in China between 13,500 and 8,200 years ago, followed by mung, soy and azuki beans. Sheep were domesticated in Mesopotamia between 13,000 and 11,000 years ago. From around 11,500 years ago, the eight Neolithic founder crops, emmer and einkorn wheat, hulled barley, peas, lentils, bitter vetch, chick peas and flax were cultivated in the Levant. Cattle were domesticated from the aurochs in the areas of modern Turkey. In the Andes of South America, the potato was domesticated between 10,000 and 7,000 years ago, along with beans, coca, llamas, alpacas, sugarcane and some root vegetables were domesticated in New Guinea around 9,000 years ago. Sorghum was domesticated in the Sahel region of Africa by 7,000 years ago, cotton was domesticated in Peru by 5,600 years ago, and was independently domesticated in Eurasia at an unknown time

11.
Industry
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Industry is the production of goods or related services within an economy. The major source of revenue of a group or company is the indicator of its relevant industry, when a large group has multiple sources of revenue generation, it is considered to be working in different industries. Manufacturing industry became a key sector of production and labour in European and North American countries during the Industrial Revolution, upsetting previous mercantile and this came through many successive rapid advances in technology, such as the production of steel and coal. Following the Industrial Revolution, possibly a third of the economic output are derived that is from manufacturing industries. Many developed countries and many developing/semi-developed countries depend significantly on manufacturing industry, Industries, the countries they reside in, and the economies of those countries are interlinked in a complex web of interdependence. Industries can be classified in a variety of ways, at the top level, industry is often classified according to the three-sector theory into sectors, primary, secondary, and tertiary. Some authors add quaternary or even quinary sectors, over time, the fraction of a societys industry within each sector changes. Below the economic sectors there are other more detailed industry classifications. These classification systems commonly divide industries according to functions and markets. Market-based classification systems such as the Global Industry Classification Standard and the Industry Classification Benchmark are used in finance, the International Standard Industrial Classification of all economic activities is the most complete and systematic industrial classification made by the United Nations Statistics Division. ISIC is a classification of economic activities arranged so that entities can be classified according to the activity they carry out. The Industrial Revolution led to the development of factories for large-scale production, originally the factories were steam-powered, but later transitioned to electricity once an electrical grid was developed. The mechanized assembly line was introduced to parts in a repeatable fashion. This led to significant increases in efficiency, lowering the cost of the end process, later automation was increasingly used to replace human operators. This process has accelerated with the development of the computer and the robot, historically certain manufacturing industries have gone into a decline due to various economic factors, including the development of replacement technology or the loss of competitive advantage. An example of the former is the decline in manufacturing when the automobile was mass-produced. A recent trend has been the migration of prosperous, industrialized nations towards a post-industrial society and this is manifested by an increase in the service sector at the expense of manufacturing, and the development of an information-based economy, the so-called informational revolution. In a post-industrial society, manufacturing is relocated to more favourable locations through a process of off-shoring

12.
Service (economics)
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In economics, a service is a transaction in which no physical goods is transferred from the seller to the buyer. The benefits of such a service are held to be demonstrated by the willingness to make the exchange. Public services are those that society as a whole pays for, using resources, skill, ingenuity, and experience, service providers benefit service consumers. Services can be described in terms of their key characteristics, sometimes called the Five Is of Services and they are not manufactured, transported or stocked. Services cannot be stored for a future use and they are produced and consumed simultaneously. Services are perishable in two regards, Service-relevant resources, processes and systems are assigned for delivery during a specific period in time. If the service consumer does not request and consume the service during this period, from the perspective of the service provider, this is a lost business opportunity if no other use for those resources is available. Examples, A hairdresser serves another client, an empty seat on an airplane cannot be filled after departure. When the service has been rendered to the consumer, this particular service irreversibly vanishes. Example, a passenger has been transported to the destination and the flight is over, the service provider must deliver the service at the time of service consumption. The service is not manifested in an object that is independent of the provider. The service consumer is also inseparable from service delivery, examples, The service consumer must sit in the hairdressers chair, or in the airplane seat. Correspondingly, the hairdresser or the pilot must be in the shop or plane, respectively, many services are regarded as heterogeneous and are typically modified for each service consumer or each service context. Another and more common term for this is heterogeneity, both service provider and service consumer participate in the service provision. Mass generation and delivery of services must be mastered for a provider to expand. This can be seen as a problem of service quality, both inputs and outputs to the processes involved providing services are highly variable, as are the relationships between these processes, making it difficult to maintain consistent service quality. Many services involve variable human activity, rather than a precisely determined process, the human factor is often the key success factor in service provision. Demand can vary by season, time of day, business cycle, consistency is necessary to create enduring business relationships

13.
Inflation
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In economics, inflation is a sustained increase in the general price level of goods and services in an economy over a period of time resulting in a loss of value of currency. When the price rises, each unit of currency buys fewer goods. Consequently, inflation reflects a reduction in the power per unit of money – a loss of real value in the medium of exchange. A chief measure of inflation is the inflation rate, the annualized percentage change in a general price index, usually the consumer price index. The opposite of inflation is deflation, Inflation affects economies in various positive and negative ways. Economists generally believe that high rates of inflation and hyperinflation are caused by a growth of the money supply. However, money supply growth does not necessarily cause inflation, some economists maintain that under the conditions of a liquidity trap, large monetary injections are like pushing on a string. Views on which factors determine low to moderate rates of inflation are more varied, low or moderate inflation may be attributed to fluctuations in real demand for goods and services, or changes in available supplies such as during scarcities. However, the view is that a long sustained period of inflation is caused by money supply growing faster than the rate of economic growth. Today, most economists favor a low and steady rate of inflation, the task of keeping the rate of inflation low and stable is usually given to monetary authorities. Rapid increases in quantity of the money or in the money supply have occurred in many different societies throughout history. By diluting the gold with other metals, the government could issue more coins without also needing to increase the amount of used to make them. When the cost of each coin is lowered in this way and this practice would increase the money supply but at the same time the relative value of each coin would be lowered. As the relative value of the coins becomes lower, consumers would need to give more coins in exchange for the same goods and these goods and services would experience a price increase as the value of each coin is reduced. Song Dynasty China introduced the practice of printing paper money in order to create fiat currency, during the Mongol Yuan Dynasty, the government spent a great deal of money fighting costly wars, and reacted by printing more money, leading to inflation. Fearing the inflation that plagued the Yuan dynasty, the Ming Dynasty initially rejected the use of paper money, historically, large infusions of gold or silver into an economy also led to inflation. This was largely caused by the influx of gold and silver from the New World into Habsburg Spain. The silver spread throughout a previously cash-starved Europe and caused widespread inflation, demographic factors also contributed to upward pressure on prices, with European population growth after depopulation caused by the Black Death pandemic

14.
Poverty threshold
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The poverty threshold, poverty limit or poverty line is the minimum level of income deemed adequate in a particular country. In practice, like the definition of poverty, the official or common understanding of the poverty line is higher in developed countries than in developing countries. In 2008, the World Bank came out with a figure of $1.25 at 2005 purchasing-power parity, the new IPL replaces the $1.25 per day figure, which used 2005 data. Most scholars agree that it better reflects todays reality, particularly new price levels in developing countries, the common international poverty line has in the past been roughly $1 a day. At present the percentage of the population living under extreme poverty is likely to fall below 10% according to the World Bank projections released in 2015. Determining the poverty line is usually done by finding the total cost of all the resources that an average human adult consumes in one year. Individual factors are used to account for various circumstances, such as whether one is a parent, elderly. The poverty threshold may be adjusted annually, charles Booth, a pioneering investigator of poverty in London at the turn of the 20th century, popularised the idea of a poverty line, a concept originally conceived by the London School Board. Booth set the line at 10 to 20 shillings per week, to secure the necessaries of a healthy life, which included fuel and light, rent, food, clothing, and household and personal items. Based on data from leading nutritionists of the period, he calculated the cheapest price for the minimum calorific intake and nutritional balance necessary and he considered this amount to set his poverty line and concluded that 27. 84% of the total population of York lived below this poverty line. Rowntree distinguished between primary poverty, those lacking in income and secondary poverty, those who had enough income, Absolute poverty is the level of poverty as defined in terms of the minimal requirements necessary to afford minimal standards of food, clothing, health care and shelter. For the measure to be absolute, the line must be the same in different countries, cultures, such an absolute measure should look only at the individuals power to consume and it should be independent of any changes in income distribution. Notice that if real income in an economy increases. Measuring poverty by a threshold has the advantage of applying the same standard across different locations and time periods. For example, a living in far northern Scandinavia requires a source of heat during colder months. The term absolute poverty is sometimes used as a synonym for extreme poverty. Absolute poverty is the absence of resources to secure basic life necessities. It depends not only on income but also on access to services, safe drinking water, Water must not come solely from rivers and ponds, and must be available nearby

15.
Gini coefficient
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The Gini coefficient is a measure of statistical dispersion intended to represent the income or wealth distribution of a nations residents, and is the most commonly used measure of inequality. It was developed by the Italian statistician and sociologist Corrado Gini, the Gini coefficient measures the inequality among values of a frequency distribution. A Gini coefficient of zero expresses perfect equality, where all values are the same, a Gini coefficient of 1 expresses maximal inequality among values. However, a greater than one may occur if some persons represent negative contribution to the total. For larger groups, values close to or above 1 are very unlikely in practice, the exception to this is in the redistribution of wealth resulting in a minimum income for all people. When the population is sorted, if their distribution were to approximate a well known function. The Gini coefficient was proposed by Gini as a measure of inequality of income or wealth, the global income Gini coefficient in 2005 has been estimated to be between 0.61 and 0.68 by various sources. There are some issues in interpreting a Gini coefficient, the same value may result from many different distribution curves. The demographic structure should be taken into account, Countries with an aging population, or with a baby boom, experience an increasing pre-tax Gini coefficient even if real income distribution for working adults remains constant. Scholars have devised over a dozen variants of the Gini coefficient, the line at 45 degrees thus represents perfect equality of incomes. The Gini coefficient can then be thought of as the ratio of the area lies between the line of equality and the Lorenz curve over the total area under the line of equality. It is also equal to 2A and to 1 - 2B due to the fact that A + B =0.5. If all people have non-negative income, the Gini coefficient can theoretically range from 0 to 1, in practice, both extreme values are not quite reached. If negative values are possible, then the Gini coefficient could theoretically be more than 1, normally the mean is assumed positive, which rules out a Gini coefficient less than zero. An alternative approach would be to consider the Gini coefficient as half of the mean absolute difference. The effects of income policy due to redistribution can be seen in the linear relationships. An informative simplified case just distinguishes two levels of income, low and high, if the high income group is u % of the population and earns a fraction f % of all income, then the Gini coefficient is f − u. An actual more graded distribution with these same values u and f will always have a higher Gini coefficient than f − u, the proverbial case where the richest 20% have 80% of all income would lead to an income Gini coefficient of at least 60%

16.
Human Development Index
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The Human Development Index is a composite statistic of life expectancy, education, and per capita income indicators, which are used to rank countries into four tiers of human development. A country scores higher HDI when the lifespan is higher, the level is higher. The 2010 Human Development Report introduced an Inequality-adjusted Human Development Index, while the simple HDI remains useful, it stated that the IHDI is the actual level of human development, and the HDI can be viewed as an index of potential human development. The origins of the HDI are found in the annual Human Development Reports produced by the Human Development Reports Office of the United Nations Development Programme, nobel laureate Amartya Sen, utilized Haqs work in his own work on human capabilities. The following three indices are used,1, Life Expectancy Index = LE −2085 −20 LEI is 1 when Life expectancy at birth is 85 and 0 when Life expectancy at birth is 20. Education Index = MYSI + EYSI22.1 Mean Years of Schooling Index = MYS15 Fifteen is the maximum of this indicator for 2025. 2.2 Expected Years of Schooling Index = EYS18 Eighteen is equivalent to achieving a degree in most countries. Income Index = ln ⁡ − ln ⁡ ln ⁡ − ln ⁡ II is 1 when GNI per capita is $75,000 and 0 when GNI per capita is $100. Finally, the HDI is the mean of the previous three normalized indices, HDI = LEI ⋅ EI ⋅ II3. Standard of living, as indicated by the logarithm of gross domestic product per capita at purchasing power parity. This methodology was used by the UNDP until their 2011 report, the formula defining the HDI is promulgated by the United Nations Development Programme. The 2016 Human Development Report by the United Nations Development Programme was released on March 21,2017, below is the list of the very high human development countries, = increase. The number in brackets represents the number of ranks the country has climbed relative to the ranking in the 2015 report, the Inequality-adjusted Human Development Index is a measure of the average level of human development of people in a society once inequality is taken into account. The rankings are not relative to the HDI list above due to the exclusion of countries which are missing IHDI data. Countries in the top quartile of HDI with a missing IHDI, New Zealand, Singapore, Hong Kong, Liechtenstein, Brunei, Qatar, Saudi Arabia, Andorra, United Arab Emirates, Bahrain, and Kuwait. The 2015 Human Development Report by the United Nations Development Programme was released on December 14,2015, below is the list of the very high human development countries, = increase. The number in brackets represents the number of ranks the country has climbed relative to the ranking in the 2014 report, the Inequality-adjusted Human Development Index is a measure of the average level of human development of people in a society once inequality is taken into account. Note, The green arrows, red arrows, and blue dashes represent changes in rank, the rankings are not relative to the HDI list above due to the exclusion of countries which are missing IHDI data

17.
Net pay
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In business, net income is an entitys income minus cost of goods sold, expenses and taxes for an accounting period. In the context of the presentation of financial statements, the IFRS Foundation defines net income as synonymous with profit, net income is a distinct accounting concept from profit but the same as net profit. Net income can also be calculated by adding a companys operating income to non-operating income, net income can be distributed among holders of common stock as a dividend or held by the firm as an addition to retained earnings. As profit and earnings are used synonymously for income, net earnings, often, the term income is substituted for net income, yet this is not preferred due to the possible ambiguity. Net income is called the bottom line because it is typically found on the last line of a companys income statement. The items deducted will typically include tax expense, financing expense, likewise, preferred stock dividends will be subtracted too, though they are not an expense. For a merchandising company, subtracted costs may be the cost of goods sold, sales discounts, for a product company advertising, manufacturing, and design and development costs are included

18.
Ferrous
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Ferrous, in chemistry, indicates a divalent iron compound, as opposed to ferric, which indicates a trivalent iron compound. Outside chemistry, ferrous is a used to indicate the presence of iron. The word is derived from the Latin word ferrum, Ferrous metals include steel and pig iron and alloys of iron with other metals. Manipulation of atom-to-atom relationships between iron, carbon, and various alloying elements establishes the specific properties of ferrous metals, the term non-ferrous is used to indicate metals other than iron and alloys that do not contain an appreciable amount of iron. Ferromagnetism Steelmaking Ferrous metal recycling Iron oxide Ferrous chloride Iron bromide

19.
Metal
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A metal is a material that is typically hard, opaque, shiny, and has good electrical and thermal conductivity. Metals are generally malleable—that is, they can be hammered or pressed permanently out of shape without breaking or cracking—as well as fusible and ductile, about 91 of the 118 elements in the periodic table are metals, the others are nonmetals or metalloids. Some elements appear in both metallic and non-metallic forms, astrophysicists use the term metal to collectively describe all elements other than hydrogen and helium, the simplest two, in a star. The star fuses smaller atoms, mostly hydrogen and helium, to larger ones over its lifetime. In that sense, the metallicity of an object is the proportion of its matter made up of all chemical elements. Many elements and compounds that are not normally classified as metals become metallic under high pressures, the atoms of metallic substances are typically arranged in one of three common crystal structures, namely body-centered cubic, face-centered cubic, and hexagonal close-packed. In bcc, each atom is positioned at the center of a cube of eight others, in fcc and hcp, each atom is surrounded by twelve others, but the stacking of the layers differs. Some metals adopt different structures depending on the temperature, atoms of metals readily lose their outer shell electrons, resulting in a free flowing cloud of electrons within their otherwise solid arrangement. This provides the ability of metallic substances to easily transmit heat, while this flow of electrons occurs, the solid characteristic of the metal is produced by electrostatic interactions between each atom and the electron cloud. This type of bond is called a metallic bond, Metals are usually inclined to form cations through electron loss, reacting with oxygen in the air to form oxides over various timescales. Examples,4 Na + O2 →2 Na2O2 Ca + O2 →2 CaO4 Al +3 O2 →2 Al2O3, the transition metals are slower to oxidize because they form a passivating layer of oxide that protects the interior. Others, like palladium, platinum and gold, do not react with the atmosphere at all, some metals form a barrier layer of oxide on their surface which cannot be penetrated by further oxygen molecules and thus retain their shiny appearance and good conductivity for many decades. The oxides of metals are generally basic, as opposed to those of nonmetals, exceptions are largely oxides with very high oxidation states such as CrO3, Mn2O7, and OsO4, which have strictly acidic reactions. Painting, anodizing or plating metals are good ways to prevent their corrosion, however, a more reactive metal in the electrochemical series must be chosen for coating, especially when chipping of the coating is expected. Water and the two form an electrochemical cell, and if the coating is less reactive than the coatee. Metals in general have high conductivity, high thermal conductivity. Typically they are malleable and ductile, deforming under stress without cleaving, in terms of optical properties, metals are shiny and lustrous. Sheets of metal beyond a few micrometres in thickness appear opaque, although most metals have higher densities than most nonmetals, there is wide variation in their densities, lithium being the least dense solid element and osmium the densest

20.
Petroleum
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Petroleum is a naturally occurring, yellow-to-black liquid found in geological formations beneath the Earths surface, which is commonly refined into various types of fuels. Components of petroleum are separated using a technique called fractional distillation and it consists of hydrocarbons of various molecular weights and other organic compounds. The name petroleum covers both naturally occurring unprocessed crude oil and petroleum products that are made up of refined crude oil. A fossil fuel, petroleum is formed when large quantities of dead organisms, usually zooplankton and algae, are buried underneath sedimentary rock, Petroleum has mostly been recovered by oil drilling. Drilling is carried out studies of structural geology, sedimentary basin analysis. Petroleum is used in manufacturing a variety of materials. Concern over the depletion of the earths finite reserves of oil, the burning of fossil fuels plays the major role in the current episode of global warming. The word petroleum comes from Greek, πέτρα for rocks and Greek, the term was found in 10th-century Old English sources. It was used in the treatise De Natura Fossilium, published in 1546 by the German mineralogist Georg Bauer, Petroleum, in one form or another, has been used since ancient times, and is now important across society, including in economy, politics and technology. Great quantities of it were found on the banks of the river Issus, ancient Persian tablets indicate the medicinal and lighting uses of petroleum in the upper levels of their society. By 347 AD, oil was produced from bamboo-drilled wells in China, early British explorers to Myanmar documented a flourishing oil extraction industry based in Yenangyaung that, in 1795, had hundreds of hand-dug wells under production. The mythological origins of the oil fields at Yenangyaung, and its hereditary monopoly control by 24 families, Pechelbronn is said to be the first European site where petroleum has been explored and used. The still active Erdpechquelle, a spring where petroleum appears mixed with water has been used since 1498, Oil sands have been mined since the 18th century. In Wietze in lower Saxony, natural asphalt/bitumen has been explored since the 18th century, both in Pechelbronn as in Wietze, the coal industry dominated the petroleum technologies. In 1848 Young set up a small business refining the crude oil, Young eventually succeeded, by distilling cannel coal at a low heat, in creating a fluid resembling petroleum, which when treated in the same way as the seep oil gave similar products. The production of oils and solid paraffin wax from coal formed the subject of his patent dated 17 October 1850. In 1850 Young & Meldrum and Edward William Binney entered into partnership under the title of E. W. Binney & Co. at Bathgate in West Lothian, the worlds first oil refinery was built in 1856 by Ignacy Łukasiewicz. The demand for petroleum as a fuel for lighting in North America, edwin Drakes 1859 well near Titusville, Pennsylvania, is popularly considered the first modern well

21.
Coal
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Coal is a combustible black or brownish-black sedimentary rock usually occurring in rock strata in layers or veins called coal beds or coal seams. The harder forms, such as coal, can be regarded as metamorphic rock because of later exposure to elevated temperature and pressure. Coal is composed primarily of carbon, along with quantities of other elements, chiefly hydrogen, sulfur, oxygen. A fossil fuel, coal forms when plant matter is converted into peat, which in turn is converted into lignite, then sub-bituminous coal, after that bituminous coal. This involves biological and geological processes that take place over time, throughout history, coal has been used as an energy resource, primarily burned for the production of electricity and heat, and is also used for industrial purposes, such as refining metals. Coal is the largest source of energy for the generation of electricity worldwide, the extraction of coal, its use in energy production and its byproducts are all associated with environmental and health effects including climate change. Coal is extracted from the ground by coal mining, since 1983, the worlds top coal producer has been China. In 2015 China produced 3,747 million tonnes of coal –47. 7% of 7,861 million tonnes world coal production, in 2015 other large producers were United States, India, European Union and Australia. The word originally took the col in Old English, from Proto-Germanic *kula. In Old Turkic languages, kül is ash, cinders, öčür is quench, the compound charcoal in Turkic is öčür kül, literally quenched ashes, cinders, coals with elided anlaut ö- and inflection affixes -ülmüş. At various times in the geologic past, the Earth had dense forests in low-lying wetland areas, due to natural processes such as flooding, these forests were buried underneath soil. As more and more soil deposited over them, they were compressed, the temperature also rose as they sank deeper and deeper. As the process continued the plant matter was protected from biodegradation and oxidation and this trapped the carbon in immense peat bogs that were eventually covered and deeply buried by sediments. Under high pressure and high temperature, dead vegetation was slowly converted to coal, as coal contains mainly carbon, the conversion of dead vegetation into coal is called carbonization. The wide, shallow seas of the Carboniferous Period provided ideal conditions for coal formation, the exception is the coal gap in the Permian–Triassic extinction event, where coal is rare. Coal is known from Precambrian strata, which predate land plants — this coal is presumed to have originated from residues of algae, in its dehydrated form, peat is a highly effective absorbent for fuel and oil spills on land and water. It is also used as a conditioner for soil to make it able to retain. Lignite, or brown coal, is the lowest rank of coal, jet, a compact form of lignite, is sometimes polished and has been used as an ornamental stone since the Upper Palaeolithic

22.
Cement
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A cement is a binder, a substance used in construction that sets, hardens and adheres to other materials, binding them together. Cement is seldom used solely, but is used to bind sand, Cement is used with fine aggregate to produce mortar for masonry, or with sand and gravel aggregates to produce concrete. Non-hydraulic cement will not set in wet conditions or underwater, rather, it sets as it dries and it is resistant to attack by chemicals after setting. Hydraulic cements set and become adhesive due to a reaction between the dry ingredients and water. The chemical reaction results in mineral hydrates that are not very water-soluble and so are quite durable in water and this allows setting in wet condition or underwater and further protects the hardened material from chemical attack. The chemical process for hydraulic cement found by ancient Romans used volcanic ash with added lime, the word cement can be traced back to the Roman term opus caementicium, used to describe masonry resembling modern concrete that was made from crushed rock with burnt lime as binder. The volcanic ash and pulverized brick supplements that were added to the burnt lime, to obtain a hydraulic binder, were referred to as cementum, cimentum, cäment. In modern times, organic polymers are used as cements in concrete. Non-hydraulic cement, such as slaked lime, hardens by carbonation in the presence of carbon dioxide which is present in the air. The carbonation reaction requires the dry cement to be exposed to air and this whole process is called the lime cycle. Conversely, hydraulic cement hardens by hydration when water is added, Hydraulic cements are made of a mixture of silicates and oxides, the four main components being, Belite, Alite, Tricalcium aluminate, Brownmillerite. The chemistry of the above listed reactions is not completely clear and is still the object of research, Cement, chemically speaking, is a product that includes lime as the primary curing ingredient, but is far from the first material used for cementation. The Babylonians and Assyrians used bitumen to bind together burnt brick or alabaster slabs, in Egypt stone blocks were cemented together with a mortar made of sand and roughly burnt gypsum, which often contained calcium carbonate. Lime was used on Crete and by the ancient Greeks, there is evidence that the Minoans of Crete used crushed potshards as an artificial pozzolan for hydraulic cement. A kind of powder which from natural causes produces astonishing results and it is found in the neighborhood of Baiae and in the country belonging to the towns round about Mt. Vesuvius. This substance when mixed with lime and rubble not only lends strength to buildings of other kinds, the Greeks used volcanic tuff from the island of Thera as their pozzolan and the Romans used crushed volcanic ash with lime. This mixture was able to set under water increasing its resistance, the material was called pozzolana from the town of Pozzuoli, west of Naples where volcanic ash was extracted. In the absence of ash, the Romans used powdered brick or pottery as a substitute

23.
Chemical substance
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A chemical substance is a form of matter that has constant chemical composition and characteristic properties. It cannot be separated into components by physical methods, i. e. without breaking chemical bonds. Chemical substances can be chemical elements, chemical compounds, ions or alloys, Chemical substances are often called pure to set them apart from mixtures. A common example of a substance is pure water, it has the same properties. Other chemical substances commonly encountered in pure form are diamond, gold, table salt, however, in practice, no substance is entirely pure, and chemical purity is specified according to the intended use of the chemical. Chemical substances exist as solids, liquids, gases, or plasma, Chemical substances may be combined or converted to others by means of chemical reactions. Forms of energy, such as light and heat, are not matter, a chemical substance may well be defined as any material with a definite chemical composition in an introductory general chemistry textbook. According to this definition a chemical substance can either be a chemical element or a pure chemical compound. But, there are exceptions to this definition, a substance can also be defined as a form of matter that has both definite composition and distinct properties. The chemical substance index published by CAS also includes several alloys of uncertain composition, in geology, substances of uniform composition are called minerals, while physical mixtures of several minerals are defined as rocks. Many minerals, however, mutually dissolve into solid solutions, such that a rock is a uniform substance despite being a mixture in stoichiometric terms. Feldspars are an example, anorthoclase is an alkali aluminium silicate. In law, chemical substances may include both pure substances and mixtures with a composition or manufacturing process. For example, the EU regulation REACH defines monoconstituent substances, multiconstituent substances and substances of unknown or variable composition, the latter two consist of multiple chemical substances, however, their identity can be established either by direct chemical analysis or reference to a single manufacturing process. For example, charcoal is a complex, partially polymeric mixture that can be defined by its manufacturing process. Therefore, although the chemical identity is unknown, identification can be made to a sufficient accuracy. The CAS index also includes mixtures, polymers almost always appear as mixtures of molecules of multiple molar masses, each of which could be considered a separate chemical substance. However, the polymer may be defined by a precursor or reaction

24.
Pharmaceuticals
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A pharmaceutical drug is a drug used to diagnose, cure, treat, or prevent disease. Drug therapy is an important part of the field and relies on the science of pharmacology for continual advancement. Drugs are classified in various ways, one of the key divisions is by level of control, which distinguishes prescription drugs from over-the-counter drugs. Other ways to classify medicines are by mode of action, route of administration, biological system affected, an elaborate and widely used classification system is the Anatomical Therapeutic Chemical Classification System. The World Health Organization keeps a list of essential medicines, Drug discovery and drug development are complex and expensive endeavors undertaken by pharmaceutical companies, academic scientists, and governments. Governments generally regulate what drugs can be marketed, how drugs are marketed, controversies have arisen over drug pricing and disposal of used drugs. In the US, a drug is, A substance recognized by an official pharmacopoeia or formulary, a substance intended for use in the diagnosis, cure, mitigation, treatment, or prevention of disease. A substance intended to affect the structure or any function of the body, a substance intended for use as a component of a medicine but not a device or a component, part or accessory of a device. Pharmaceutical or a drug is classified on the basis of their origin, Drug from natural origin, Herbal or plant or mineral origin, some drug substances are of marine origin. Drug from chemical as well as origin, Derived from partial herbal and partial chemical synthesis Chemical. Drug derived from animal origin, For example, hormones, Drug derived from microbial origin, Antibiotics Drug derived by biotechnology genetic-engineering, hybridoma technique for example Drug derived from radioactive substances. An elaborate and widely used system is the Anatomical Therapeutic Chemical Classification System. The World Health Organization keeps a list of essential medicines, the main classes of painkillers are NSAIDs, opioids and Local anesthetics. For consciousness Some anesthetics include Benzodiazepines and Barbiturates, the main categories of drugs for musculoskeletal disorders are, NSAIDs, muscle relaxants, neuromuscular drugs, and anticholinesterases. Euthanasia is not permitted by law in countries, and consequently medicines will not be licensed for this use in those countries. Administration is the process by which a patient takes a medicine, there are three major categories of drug administration, enteral, parenteral, and other. It can be performed in various forms such as pills, tablets. There are many variations in the routes of administration, including intravenous and they can be administered all at once as a bolus, at frequent intervals or continuously

25.
Aerospace
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Aerospace is the human effort in science, engineering and business to fly in the atmosphere of Earth and surrounding space. Aerospace organisations research, design, manufacture, operate, or maintain aircraft and/or spacecraft, Aerospace activity is very diverse, with a multitude of commercial, industrial and military applications. Aerospace is not the same as airspace, which is the air space directly above a location on the ground. In most industrial countries, the industry is a cooperation of public. Along with these public space programs, many companies produce technical tools and components such as spaceships, some known companies involved in space programs include Boeing, Airbus Group, SpaceX, Lockheed Martin, MacDonald Dettwiler and Northrop Grumman. These companies are involved in other areas of aerospace such as the construction of aircraft. Modern aerospace began with George Cayley in 1799, Cayley proposed an aircraft with a fixed wing and a horizontal and vertical tail, defining characteristics of the modern airplane. Airmen like Otto Lilienthal, who introduced cambered airfoils in 1891, the Wright brothers were interested in Lilienthals work and read several of his publications. They also found inspiration in Octave Chanute, an airman and the author of Progress in Flying Machines, war and science fiction inspired great minds like Konstantin Tsiolkovsky and Wernher von Braun to achieve flight beyond the atmosphere. The launch of Sputnik 1 in October 1957 started the Space Age, in April 1981, the Space Shuttle Columbia launched, the start of regular manned access to orbital space. A sustained human presence in space started with Mir in 1986 and is continued by the International Space Station. Space commercialization and space tourism are more recent focuses in aerospace, Aerospace manufacturing is a high-technology industry that produces aircraft, guided missiles, space vehicles, aircraft engines, propulsion units, and related parts. Most of the industry is geared toward governmental work, for each original equipment manufacturer, the US government has assigned a Commercial and Government Entity code. These codes help to each manufacturer, repair facilities. In the United States, the Department of Defense and the National Aeronautics, others include the very large airline industry. The aerospace industry employed 472,000 wage and salary workers in 2006, most of those jobs were in Washington state and in California, with Missouri, New York and Texas also being important. The leading aerospace manufacturers in the U. S. are Boeing, United Technologies Corporation, SpaceX, Northrop Grumman and these manufacturers are facing an increasing labor shortage as skilled U. S. workers age and retire. In India, Bangalore is a center of the aerospace industry, where Hindustan Aeronautics Limited, the National Aerospace Laboratories

26.
Rail transport
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Rail transport is a means of conveyance of passengers and goods on wheeled vehicles running on rails, also known as tracks. It is also referred to as train transport. In contrast to road transport, where vehicles run on a flat surface. Tracks usually consist of rails, installed on ties and ballast, on which the rolling stock, usually fitted with metal wheels. Other variations are possible, such as slab track, where the rails are fastened to a concrete foundation resting on a prepared subsurface. Rolling stock in a transport system generally encounters lower frictional resistance than road vehicles, so passenger. The operation is carried out by a company, providing transport between train stations or freight customer facilities. Power is provided by locomotives which either draw electric power from a railway system or produce their own power. Most tracks are accompanied by a signalling system, Railways are a safe land transport system when compared to other forms of transport. The oldest, man-hauled railways date back to the 6th century BC, with Periander, one of the Seven Sages of Greece, Rail transport blossomed after the British development of the steam locomotive as a viable source of power in the 19th centuries. With steam engines, one could construct mainline railways, which were a key component of the Industrial Revolution, also, railways reduced the costs of shipping, and allowed for fewer lost goods, compared with water transport, which faced occasional sinking of ships. The change from canals to railways allowed for markets in which prices varied very little from city to city. In the 1880s, electrified trains were introduced, and also the first tramways, starting during the 1940s, the non-electrified railways in most countries had their steam locomotives replaced by diesel-electric locomotives, with the process being almost complete by 2000. During the 1960s, electrified high-speed railway systems were introduced in Japan, other forms of guided ground transport outside the traditional railway definitions, such as monorail or maglev, have been tried but have seen limited use. The history of the growth, decline and restoration to use of transport can be divided up into several discrete periods defined by the principal means of motive power used. The earliest evidence of a railway was a 6-kilometre Diolkos wagonway, trucks pushed by slaves ran in grooves in limestone, which provided the track element. The Diolkos operated for over 600 years, Railways began reappearing in Europe after the Dark Ages. The earliest known record of a railway in Europe from this period is a window in the Minster of Freiburg im Breisgau in Germany

27.
Car
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A car is a wheeled, self-powered motor vehicle used for transportation and a product of the automotive industry. The year 1886 is regarded as the year of the modern car. In that year, German inventor Karl Benz built the Benz Patent-Motorwagen, cars did not become widely available until the early 20th century. One of the first cars that was accessible to the masses was the 1908 Model T, an American car manufactured by the Ford Motor Company. Cars were rapidly adopted in the United States of America, where they replaced animal-drawn carriages and carts, cars are equipped with controls used for driving, parking, passenger comfort and safety, and controlling a variety of lights. Over the decades, additional features and controls have been added to vehicles, examples include rear reversing cameras, air conditioning, navigation systems, and in car entertainment. Most cars in use in the 2010s are propelled by a combustion engine. Both fuels cause air pollution and are blamed for contributing to climate change. Vehicles using alternative fuels such as ethanol flexible-fuel vehicles and natural gas vehicles are also gaining popularity in some countries, electric cars, which were invented early in the history of the car, began to become commercially available in 2008. There are costs and benefits to car use, the costs of car usage include the cost of, acquiring the vehicle, interest payments, repairs and auto maintenance, fuel, depreciation, driving time, parking fees, taxes, and insurance. The costs to society of car use include, maintaining roads, land use, road congestion, air pollution, public health, health care, road traffic accidents are the largest cause of injury-related deaths worldwide. The benefits may include transportation, mobility, independence. The ability for humans to move flexibly from place to place has far-reaching implications for the nature of societies and it was estimated in 2010 that the number of cars had risen to over 1 billion vehicles, up from the 500 million of 1986. The numbers are increasing rapidly, especially in China, India, the word car is believed to originate from the Latin word carrus or carrum, or the Middle English word carre. In turn, these originated from the Gaulish word karros, the Gaulish language was a branch of the Brythoic language which also used the word Karr, the Brythonig language evolved into Welsh where Car llusg and car rhyfel still survive. It originally referred to any wheeled vehicle, such as a cart, carriage. Motor car is attested from 1895, and is the formal name for cars in British English. Autocar is a variant that is attested from 1895

28.
Heavy equipment
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Heavy equipment refers to heavy-duty vehicles, specially designed for executing construction tasks, most frequently ones involving earthwork operations. They are also known as machines, heavy trucks, construction equipment, engineering equipment, heavy vehicles. They usually comprise five equipment systems, implement, traction, structure, power train, control, Heavy equipment functions through the mechanical advantage of a simple machine, the ratio between input force applied and force exerted is multiplied. Some equipment uses hydraulic drives as a source of motion. The use of equipment has a long history, the ancient Roman engineer Vitruvius gave descriptions of heavy equipment. The pile driver was invented around 1500, the first tunnelling shield was patented by Isambard Kingdom Brunel in 1818. Until the 19th century and into the early 20th century heavy machines were drawn under human or animal power, with the advent of portable steam-powered engines the drawn machine precursors were reconfigured with the new engines, such as the combine harvester. The design of a core tractor evolved around the new power source into a new machine core traction engine, that can be configured as the steam tractor. During the 20th century, internal-combustion engines became the power source of heavy equipment. Kerosene and ethanol engines were used, but today diesel engines are dominant, mechanical transmission was in many cases replaced by hydraulic machinery. The early 20th century also saw new electric-powered machines such as the forklift, caterpillar Inc. is a present-day brand from these days, starting out as the Holt Manufacturing Company. The first mass-produced heavy machine was the Fordson tractor in 1917, the first commercial continuous track vehicle was the Lombard Steam Log Hauler from 1901. Tracks became extensively used for tanks during World War I, the largest engineering vehicles, and the largest mobile land machines altogether, are bucket-wheel excavators, built from the 1920s. Until almost the twentieth century, one simple tool constituted the primary earthmoving machine, the hand shovel - moved with animal and human powered, sleds, barges, and wagons. This tool was the method by which material was either sidecast or elevated to load a conveyance, usually a wheelbarrow. In antiquity, an equivalent of the shovel or hoe. The two elements required for mechanized earthmoving, then as now, were an independent power source and off-road mobility, container cranes were used from the 1950s and onwards, and made containerization possible. Nowadays such is the importance of this machinery, some companies have developed specific equipment to transport heavy construction equipment to

29.
Shipbuilding
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Shipbuilding is the construction of ships and other floating vessels. It normally takes place in a facility known as a shipyard. Shipbuilders, also called shipwrights, follow a specialized occupation that traces its roots to before recorded history, Shipbuilding and ship repairs, both commercial and military, are referred to as naval engineering. The construction of boats is an activity called boat building. The dismantling of ships is called ship breaking, the ancestors of Australian Aborigines and New Guineans also went across the Lombok Strait to Sahul by boat over 50,000 years ago. Evidence from Ancient Egypt shows that the early Egyptians knew how to assemble planks of wood into a ship hull as early as 3000 BC, the Archaeological Institute of America reports that some of the oldest ships yet unearthed are known as the Abydos boats. These are a group of 14 ships discovered in Abydos that were constructed of wooden planks which were sewn together, the ship dating to 3000 BC was about 25 m,75 feet long and is now thought to perhaps have belonged to an earlier pharaoh. According to professor OConnor, the 5, 000-year-old ship may have belonged to Pharaoh Aha. Early Egyptians also knew how to assemble planks of wood with treenails to fasten them together, early Egyptians also knew how to fasten the planks of this ship together with mortise and tenon joints. The oldest known tidal dock in the world was built around 2500 BC during the Harappan civilisation at Lothal near the present day Mangrol harbour on the Gujarat coast in India, other ports were probably at Balakot and Dwarka. However, it is probable that many small-scale ports, and not massive ports, were used for the Harappan maritime trade, ships from the harbour at these ancient port cities established trade with Mesopotamia. Shipbuilding and boatmaking may have been prosperous industries in ancient India, native labourers may have manufactured the flotilla of boats used by Alexander the Great to navigate across the Hydaspes and even the Indus, under Nearchos. The Indians also exported teak for shipbuilding to ancient Persia, other references to Indian timber used for shipbuilding is noted in the works of Ibn Jubayr. The ships of Ancient Egypts Eighteenth Dynasty were typically about 25 meters in length and they mounted a single square sail on a yard, with an additional spar along the bottom of the sail. These ships could also be oar propelled, the ocean and sea going ships of Ancient Egypt were constructed with cedar wood, most likely hailing from Lebanon. The ships of Phoenicia seem to have been of a similar design, the naval history of China stems back to the Spring and Autumn period of the ancient Chinese Zhou Dynasty. The Chinese built large rectangular barges known as ships, which were essentially floating fortresses complete with multiple decks with guarded ramparts. There is considerable knowledge regarding shipbuilding and seafaring in the ancient Mediterranean and this was dually met with the introduction of the Han Dynasty junk ship design in the same century

30.
Machine tool
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A machine tool is a machine for shaping or machining metal or other rigid materials, usually by cutting, boring, grinding, shearing, or other forms of deformation. Machine tools employ some sort of tool that does the cutting or shaping, all machine tools have some means of constraining the workpiece and provide a guided movement of the parts of the machine. Thus the relative movement between the workpiece and the tool is controlled or constrained by the machine to at least some extent. The precise definition of the machine tool varies among users. While all machine tools are machines that help people to make things, today machine tools are typically powered other than by human muscle, used to make manufactured parts in various ways that include cutting or certain other kinds of deformation. With their inherent precision, machine tools enabled the production of interchangeable parts. In this view of the definition, the term, arising at a time when all tools up till then had been hand tools and this lathe produced screw threads out of wood and employed a true compound slide rest. The mechanical toolpath guidance grew out of various concepts, First is the spindle concept itself. The machine slide, which has many forms, such as dovetail ways, box ways, Machine slides constrain tool or workpiece movement linearly. If a stop is added, the length of the line can also be accurately controlled, tracing, which involves following the contours of a model or template and transferring the resulting motion to the toolpath. Cam operation, which is related in principle to tracing but can be a step or two removed from the traced elements matching the reproduced elements final shape. For example, several cams, no one of which matches the desired output shape. Abstractly programmable toolpath guidance began with mechanical solutions, such as in musical box cams, later, electromechanical solutions and soon electronic solutions were added, leading to numerical control and computer numerical control. The value that machine tools added to these human talents is in the areas of rigidity, accuracy and precision, efficiency, as an example, it is physically possible to make interchangeable screws, bolts, and nuts entirely with freehand toolpaths. But it is practical to make them only with machine tools. In the 1930s, the U. S. National Bureau of Economic Research referenced the definition of a tool as any machine operating by other than hand power which employs a tool to work on metal. The narrowest colloquial sense of the reserves it only for machines that perform metal cutting—in other words. These processes are a type of deformation that produces swarf, thus presses are usually included in the economic definition of machine tools

31.
Automation
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Some processes have been completely automated. The biggest benefit of automation is that it saves labor, however, it is used to save energy and materials and to improve quality, accuracy. The term automation, inspired by the word automatic, was not widely used before 1947. It was during this time industry was rapidly adopting feedback controllers. Automation has been achieved by means including mechanical, hydraulic, pneumatic, electrical, electronic devices and computers. Complicated systems, such as factories, airplanes and ships typically use all these combined techniques. Fundamentally, there are two types of control loop, open loop control, and closed loop control, in open loop control, the control action from the controller is independent of the process output. A good example of this is a central heating boiler controlled only by a timer, so heat is applied for a constant time. In closed loop control, the action from the controller is dependent on the process output. A closed loop controller therefore has a loop which ensures the controller exerts a control action to give a process output the same as the Reference input or set point. For this reason, closed loop controllers are also called feedback controllers, the theoretical basis of closed loop automation is control theory. The control action is the form of the output action. One of the simplest types of control is on-off control, an example is the thermostat used on household appliances which either opens or closes an electrical contact. Sequence control, in which a sequence of discrete operations is performed. An elevator control system is an example of sequence control, a proportional–integral–derivative controller is a control loop feedback mechanism widely used in industrial control systems. Sequential control may be either to a sequence or to a logical one that will perform different actions depending on various system states. An example of an adjustable but otherwise fixed sequence is a timer on a lawn sprinkler, States refer to the various conditions that can occur in a use or sequence scenario of the system. An example is an elevator, which uses logic based on the state to perform certain actions in response to its state

32.
Electronics
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Electronics is the science of controlling electrical energy electrically, in which the electrons have a fundamental role. Commonly, electronic devices contain circuitry consisting primarily or exclusively of active semiconductors supplemented with passive elements, the science of electronics is also considered to be a branch of physics and electrical engineering. The ability of electronic devices to act as switches makes digital information processing possible, until 1950 this field was called radio technology because its principal application was the design and theory of radio transmitters, receivers, and vacuum tubes. Today, most electronic devices use semiconductor components to perform electron control and this article focuses on engineering aspects of electronics. Components are generally intended to be connected together, usually by being soldered to a circuit board. Components may be packaged singly, or in more complex groups as integrated circuits, some common electronic components are capacitors, inductors, resistors, diodes, transistors, etc. Components are often categorized as active or passive, vacuum tubes were among the earliest electronic components. They were almost solely responsible for the revolution of the first half of the Twentieth Century. They took electronics from parlor tricks and gave us radio, television, phonographs, radar, long distance telephony and they played a leading role in the field of microwave and high power transmission as well as television receivers until the middle of the 1980s. Since that time, solid state devices have all but completely taken over, vacuum tubes are still used in some specialist applications such as high power RF amplifiers, cathode ray tubes, specialist audio equipment, guitar amplifiers and some microwave devices. The 608 contained more than 3,000 germanium transistors, thomas J. Watson Jr. ordered all future IBM products to use transistors in their design. From that time on transistors were almost exclusively used for computer logic, circuits and components can be divided into two groups, analog and digital. A particular device may consist of circuitry that has one or the other or a mix of the two types, most analog electronic appliances, such as radio receivers, are constructed from combinations of a few types of basic circuits. Analog circuits use a range of voltage or current as opposed to discrete levels as in digital circuits. The number of different analog circuits so far devised is huge, especially because a circuit can be defined as anything from a single component, analog circuits are sometimes called linear circuits although many non-linear effects are used in analog circuits such as mixers, modulators, etc. Good examples of analog circuits include vacuum tube and transistor amplifiers, one rarely finds modern circuits that are entirely analog. These days analog circuitry may use digital or even microprocessor techniques to improve performance and this type of circuit is usually called mixed signal rather than analog or digital. Sometimes it may be difficult to differentiate between analog and digital circuits as they have elements of both linear and non-linear operation, an example is the comparator which takes in a continuous range of voltage but only outputs one of two levels as in a digital circuit

33.
Fishing
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Fishing is the activity of trying to catch fish. Fish are normally caught in the wild, techniques for catching fish include hand gathering, spearing, netting, angling and trapping. Fishing may include catching aquatic animals other than fish, such as molluscs, cephalopods, crustaceans, the term is not normally applied to catching farmed fish, or to aquatic mammals, such as whales where the term whaling is more appropriate. According to United Nations FAO statistics, the number of commercial fishermen. Fisheries and aquaculture provide direct and indirect employment to over 500 million people in developing countries, in 2005, the worldwide per capita consumption of fish captured from wild fisheries was 14.4 kilograms, with an additional 7.4 kilograms harvested from fish farms. In addition to providing food, modern fishing is also a recreational pastime, Fishing is an ancient practice that dates back to at least the beginning of the Upper Paleolithic period about 40,000 years ago. Isotopic analysis of the remains of Tianyuan man, a 40. Archaeology features such as middens, discarded fish bones, and cave paintings show that sea foods were important for survival. During this period, most people lived a lifestyle and were, of necessity. However, where there are examples of permanent settlements such as those at Lepenski Vir. The British dogger was a type of sailing trawler from the 17th century. The Brixham trawler that evolved there was of a build and had a tall gaff rig. They were also sufficiently robust to be able to tow large trawls in deep water, the great trawling fleet that built up at Brixham, earned the village the title of Mother of Deep-Sea Fisheries. The small village of Grimsby grew to become the largest fishing port in the world by the mid 19th century, an Act of Parliament was first obtained in 1796, which authorised the construction of new quays and dredging of the Haven to make it deeper. It was only in the 1846, with the expansion in the fishing industry. The foundation stone for the Royal Dock was laid by Albert the Prince consort in 1849, the dock covered 25 acres and was formally opened by Queen Victoria in 1854 as the first modern fishing port. The elegant Brixham trawler spread across the world, influencing fishing fleets everywhere, by the end of the 19th century, there were over 3,000 fishing trawlers in commission in Britain, with almost 1,000 at Grimsby. These trawlers were sold to fishermen around Europe, including from the Netherlands, twelve trawlers went on to form the nucleus of the German fishing fleet

34.
Food
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Food is any substance consumed to provide nutritional support for an organism. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, the substance is ingested by an organism and assimilated by the organisms cells to provide energy, maintain life, or stimulate growth. Historically, humans secured food through two methods, hunting and gathering and agriculture, today, the majority of the food energy required by the ever increasing population of the world is supplied by the food industry. They address issues such as sustainability, biological diversity, climate change, nutritional economics, population growth, water supply, most food has its origin in plants. Some food is obtained directly from plants, but even animals that are used as sources are raised by feeding them food derived from plants. Cereal grain is a food that provides more food energy worldwide than any other type of crop. Corn, wheat, and rice – in all of their varieties – account for 87% of all grain production worldwide, most of the grain that is produced worldwide is fed to livestock. Some foods not from animal or plant sources include various edible fungi, fungi and ambient bacteria are used in the preparation of fermented and pickled foods like leavened bread, alcoholic drinks, cheese, pickles, kombucha, and yogurt. Another example is blue-green algae such as Spirulina, inorganic substances such as salt, baking soda and cream of tartar are used to preserve or chemically alter an ingredient. Many plants and plant parts are eaten as food and around 2,000 plant species are cultivated for food, many of these plant species have several distinct cultivars. Seeds of plants are a source of food for animals, including humans, because they contain the nutrients necessary for the plants initial growth, including many healthful fats. In fact, the majority of food consumed by human beings are seed-based foods, edible seeds include cereals, legumes, and nuts. Oilseeds are often pressed to produce rich oils - sunflower, flaxseed, rapeseed, sesame, seeds are typically high in unsaturated fats and, in moderation, are considered a health food, although not all seeds are edible. Large seeds, such as those from a lemon, pose a choking hazard, fruits are the ripened ovaries of plants, including the seeds within. Many plants and animals have coevolved such that the fruits of the former are a food source to the latter. Fruits, therefore, make up a significant part of the diets of most cultures, some botanical fruits, such as tomatoes, pumpkins, and eggplants, are eaten as vegetables. Vegetables are a type of plant matter that is commonly eaten as food. These include root vegetables, bulbs, leaf vegetables, stem vegetables, animals are used as food either directly or indirectly by the products they produce

35.
Drink
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A drink or beverage is a liquid intended for human consumption. In addition to their function of satisfying thirst, drinks play important roles in human culture. Common types of drinks include plain water, milk, juices, coffee, tea, in addition, alcoholic drinks such as wine, beer, and liquor, which contain the drug ethanol, have been part of human culture and development for 8,000 years. Non-alcoholic drinks often signify drinks that would normally contain alcohol, such as beer, the category includes drinks that have undergone an alcohol removal process such as non-alcoholic beers and de-alcoholized wines. When the human body becomes dehydrated it experiences the sensation of thirst and this craving of fluids results in an instinctive need to drink. Thirst is regulated by the hypothalamus in response to changes in the bodys electrolyte levels. The complete elimination of drinks, i. e. water, Water and milk have been basic drinks throughout history. As water is essential for life, it has also been the carrier of many diseases, as mankind evolved, new techniques were discovered to create drinks from the plants that were native to their areas. The earliest archaeological evidence of wine production yet found has been at sites in Georgia, beer may have been known in Neolithic Europe as far back as 3000 BCE, and was mainly brewed on a domestic scale. The invention of beer has been argued to be responsible for humanitys ability to develop technology, tea likely originated in Yunnan, China during the Shang Dynasty as a medicinal drink. Drinking has been a part of socialising throughout the centuries. In Ancient Greece, a gathering for the purpose of drinking was known as a symposium. The purpose of these gatherings could be anything from serious discussions to direct indulgence, in Ancient Rome, a similar concept of a convivium took place regularly. Many early societies considered alcohol a gift from the gods, leading to the creation of such as Dionysus. Other religions forbid, discourage, or restrict the drinking of alcoholic drinks for various reasons, in some regions with a dominant religion the production, sale, and consumption of alcoholic drinks is forbidden to everybody, regardless of religion. Toasting is a method of honouring a person or wishing good will by taking a drink, another tradition is that of the loving cup, at weddings or other celebrations such as sports victories a group will share a drink in a large receptacle, shared by everyone until empty. In East Africa and Yemen, coffee was used in religious ceremonies. As these ceremonies conflicted with the beliefs of the Christian church, the drink was also banned in Ottoman Turkey during the 17th century for political reasons and was associated with rebellious political activities in Europe

36.
Furniture
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Furniture refers to movable objects intended to support various human activities such as seating, eating, and sleeping. Furniture is also used to hold objects at a convenient height for work, Furniture can be a product of design and is considered a form of decorative art. In addition to furnitures functional role, it can serve a symbolic or religious purpose and it can be made from many materials, including metal, plastic, and wood. Furniture can be using a variety of woodworking joints which often reflect the local culture. People have been using natural objects, such as stumps, rocks and moss. Archaeological research shows that from around 30,000 years ago, people began constructing and carving their own furniture, using wood, stone, early furniture from this period is known from artwork such as a Venus figurine found in Russia, depicting the goddess on a throne. The first surviving extant furniture is in the homes of Skara Brae in Scotland, complex construction techniques such as joinery began in the early dynastic period of ancient Egypt. This era saw constructed wooden pieces, including stools and tables, sometimes decorated with valuable metals or ivory. The evolution of furniture design continued in ancient Greece and ancient Rome, with thrones being commonplace as well as the klinai, multipurpose couches used for relaxing, eating, the furniture of the Middle Ages was usually heavy, oak, and ornamented. Furniture design expanded during the Italian Renaissance of the fourteenth and fifteenth century, the seventeenth century, in both Southern and Northern Europe, was characterized by opulent, often gilded Baroque designs. The nineteenth century is defined by revival styles. The first three-quarters of the century are often seen as the march towards Modernism. One unique outgrowth of post-modern furniture design is a return to natural shapes and textures, the English word furniture is derived from the French word fourniture, the noun form of fournir, which means to supply or provide. Thus fourniture in French means supplies or provisions, the practice of using natural objects as rudimentary pieces of furniture likely dates to the beginning of human civilisation. Early humans are likely to have used tree stumps as seats, rocks as rudimentary tables, during the late palaeolithic or early neolithic period, from around 30,000 years ago, people began constructing and carving their own furniture, using wood, stone, and animal bones. The earliest evidence for the existence of constructed furniture is a Venus figurine found at the Gagarino site in Russia, a similar statue of a Mother Goddess was found in Catal Huyuk in Turkey, dating to between 6000 and 5500 BC. The inclusion of such a seat in the figurines implies that these were already common artefacts of that age, a range of unique stone furniture has been excavated in Skara Brae, a Neolithic village in Orkney, Scotland. Each house shows a degree of sophistication and was equipped with an extensive assortment of stone furniture, ranging from cupboards, dressers and beds to shelves, stone seats

37.
Paper
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Paper is a thin material produced by pressing together moist fibres of cellulose pulp derived from wood, rags or grasses, and drying them into flexible sheets. It is a material with many uses, including writing, printing, packaging, cleaning. The modern pulp and paper industry is global, with China leading its production, the oldest known archaeological fragments of the immediate precursor to modern paper, date to the 2nd century BC in China. The pulp papermaking process is ascribed to Cai Lun, a 2nd-century AD Han court eunuch, with paper as an effective substitute for silk in many applications, China could export silk in greater quantity, contributing to a Golden Age. Because of papers introduction to the West through the city of Baghdad, in the 19th century, industrial manufacture greatly lowered its cost, enabling mass exchange of information and contributing to significant cultural shifts. In 1844, the Canadian inventor Charles Fenerty and the German F. G. Keller independently developed processes for pulping wood fibres, before the industrialisation of the paper production the most common fibre source was recycled fibres from used textiles, called rags. The rags were from hemp, linen and cotton, a process for removing printing inks from recycled paper was invented by German jurist Justus Claproth in 1774. Today this method is called deinking and it was not until the introduction of wood pulp in 1843 that paper production was not dependent on recycled materials from ragpickers. The word paper is etymologically derived from Latin papyrus, which comes from the Greek πάπυρος, although the word paper is etymologically derived from papyrus, the two are produced very differently and the development of the first is distinct from the development of the second. Papyrus is a lamination of natural plant fibres, while paper is manufactured from fibres whose properties have changed by maceration. To make pulp from wood, a chemical pulping process separates lignin from cellulose fibres and this is accomplished by dissolving lignin in a cooking liquor, so that it may be washed from the cellulose, this preserves the length of the cellulose fibres. Paper made from chemical pulps are also known as wood-free papers–not to be confused with paper, this is because they do not contain lignin. The pulp can also be bleached to produce paper, but this consumes 5% of the fibres, chemical pulping processes are not used to make paper made from cotton. There are three main chemical pulping processes, the process dates back to the 1840s and it was the dominant method extent before the second world war. Most pulping operations using the process are net contributors to the electricity grid or use the electricity to run an adjacent paper mill. Another advantage is that this process recovers and reuses all inorganic chemical reagents, soda pulping is another specialty process used to pulp straws, bagasse and hardwoods with high silicate content. There are two major mechanical pulps, thermomechanical pulp and groundwood pulp, in the TMP process, wood is chipped and then fed into steam heated refiners, where the chips are squeezed and converted to fibres between two steel discs. In the groundwood process, debarked logs are fed into grinders where they are pressed against rotating stones to be made into fibres

38.
Textile
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A textile or cloth is a flexible material consisting of a network of natural or artificial fibres. Yarn is produced by spinning raw fibres of wool, flax, cotton, hemp, Textiles are formed by weaving, knitting, crocheting, knotting, or felting. The words fabric and cloth are used in textile assembly trades as synonyms for textile, however, there are subtle differences in these terms in specialized usage. Textile refers to any material made of interlacing fibres, a fabric is a material made through weaving, knitting, spreading, crocheting, or bonding that may be used in production of further goods. Cloth may be used synonymously with fabric but is often a piece of fabric used for a specific purpose. The word textile is from Latin, from the adjective textilis, meaning woven, from textus, the word cloth derives from the Old English clað, meaning a cloth, woven or felted material to wrap around one, from Proto-Germanic kalithaz. The discovery of dyed flax fibres in a cave in the Republic of Georgia dated to 34,000 BCE suggests textile-like materials were made even in prehistoric times. The production of textiles is a craft whose speed and scale of production has been altered almost beyond recognition by industrialization, however, for the main types of textiles, plain weave, twill, or satin weave, there is little difference between the ancient and modern methods. Textiles have an assortment of uses, the most common of which are for clothing and for such as bags. In the household they are used in carpeting, upholstered furnishings, window shades, towels, coverings for tables, beds, and other flat surfaces, in the workplace they are used in industrial and scientific processes such as filtering. Textiles are used in traditional crafts such as sewing, quilting. Textiles for industrial purposes, and chosen for other than their appearance, are commonly referred to as technical textiles. Technical textiles include textile structures for applications, medical textiles, geotextiles, agrotextiles. In all these applications stringent performance requirements must be met, woven of threads coated with zinc oxide nanowires, laboratory fabric has been shown capable of self-powering nanosystems using vibrations created by everyday actions like wind or body movements. Fashion designers commonly rely on textile designs to set their fashion collections apart from others, armani, the late Gianni Versace, and Emilio Pucci can be easily recognized by their signature print driven designs. Textiles can be made from many materials and these materials come from four main sources, animal, plant, mineral, and synthetic. In the past, all textiles were made from natural fibres, including plant, animal, in the 20th century, these were supplemented by artificial fibres made from petroleum. Textiles are made in various strengths and degrees of durability, from the finest gossamer to the sturdiest canvas, microfibre refers to fibres made of strands thinner than one denier

39.
United States
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Forty-eight of the fifty states and the federal district are contiguous and located in North America between Canada and Mexico. The state of Alaska is in the northwest corner of North America, bordered by Canada to the east, the state of Hawaii is an archipelago in the mid-Pacific Ocean. The U. S. territories are scattered about the Pacific Ocean, the geography, climate and wildlife of the country are extremely diverse. At 3.8 million square miles and with over 324 million people, the United States is the worlds third- or fourth-largest country by area, third-largest by land area. It is one of the worlds most ethnically diverse and multicultural nations, paleo-Indians migrated from Asia to the North American mainland at least 15,000 years ago. European colonization began in the 16th century, the United States emerged from 13 British colonies along the East Coast. Numerous disputes between Great Britain and the following the Seven Years War led to the American Revolution. On July 4,1776, during the course of the American Revolutionary War, the war ended in 1783 with recognition of the independence of the United States by Great Britain, representing the first successful war of independence against a European power. The current constitution was adopted in 1788, after the Articles of Confederation, the first ten amendments, collectively named the Bill of Rights, were ratified in 1791 and designed to guarantee many fundamental civil liberties. During the second half of the 19th century, the American Civil War led to the end of slavery in the country. By the end of century, the United States extended into the Pacific Ocean. The Spanish–American War and World War I confirmed the status as a global military power. The end of the Cold War and the dissolution of the Soviet Union in 1991 left the United States as the sole superpower. The U. S. is a member of the United Nations, World Bank, International Monetary Fund, Organization of American States. The United States is a developed country, with the worlds largest economy by nominal GDP. It ranks highly in several measures of performance, including average wage, human development, per capita GDP. While the U. S. economy is considered post-industrial, characterized by the dominance of services and knowledge economy, the United States is a prominent political and cultural force internationally, and a leader in scientific research and technological innovations. In 1507, the German cartographer Martin Waldseemüller produced a map on which he named the lands of the Western Hemisphere America after the Italian explorer and cartographer Amerigo Vespucci

40.
China
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China, officially the Peoples Republic of China, is a unitary sovereign state in East Asia and the worlds most populous country, with a population of over 1.381 billion. The state is governed by the Communist Party of China and its capital is Beijing, the countrys major urban areas include Shanghai, Guangzhou, Beijing, Chongqing, Shenzhen, Tianjin and Hong Kong. China is a power and a major regional power within Asia. Chinas landscape is vast and diverse, ranging from forest steppes, the Himalaya, Karakoram, Pamir and Tian Shan mountain ranges separate China from much of South and Central Asia. The Yangtze and Yellow Rivers, the third and sixth longest in the world, respectively, Chinas coastline along the Pacific Ocean is 14,500 kilometers long and is bounded by the Bohai, Yellow, East China and South China seas. China emerged as one of the worlds earliest civilizations in the basin of the Yellow River in the North China Plain. For millennia, Chinas political system was based on hereditary monarchies known as dynasties, in 1912, the Republic of China replaced the last dynasty and ruled the Chinese mainland until 1949, when it was defeated by the communist Peoples Liberation Army in the Chinese Civil War. The Communist Party established the Peoples Republic of China in Beijing on 1 October 1949, both the ROC and PRC continue to claim to be the legitimate government of all China, though the latter has more recognition in the world and controls more territory. China had the largest economy in the world for much of the last two years, during which it has seen cycles of prosperity and decline. Since the introduction of reforms in 1978, China has become one of the worlds fastest-growing major economies. As of 2016, it is the worlds second-largest economy by nominal GDP, China is also the worlds largest exporter and second-largest importer of goods. China is a nuclear weapons state and has the worlds largest standing army. The PRC is a member of the United Nations, as it replaced the ROC as a permanent member of the U. N. Security Council in 1971. China is also a member of numerous formal and informal multilateral organizations, including the WTO, APEC, BRICS, the Shanghai Cooperation Organization, the BCIM, the English name China is first attested in Richard Edens 1555 translation of the 1516 journal of the Portuguese explorer Duarte Barbosa. The demonym, that is, the name for the people, Portuguese China is thought to derive from Persian Chīn, and perhaps ultimately from Sanskrit Cīna. Cīna was first used in early Hindu scripture, including the Mahābhārata, there are, however, other suggestions for the derivation of China. The official name of the state is the Peoples Republic of China. The shorter form is China Zhōngguó, from zhōng and guó and it was then applied to the area around Luoyi during the Eastern Zhou and then to Chinas Central Plain before being used as an occasional synonym for the state under the Qing

41.
Switzerland
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Switzerland, officially the Swiss Confederation, is a federal republic in Europe. It consists of 26 cantons, and the city of Bern is the seat of the federal authorities. The country is situated in western-Central Europe, and is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland is a country geographically divided between the Alps, the Swiss Plateau and the Jura, spanning an area of 41,285 km2. The establishment of the Old Swiss Confederacy dates to the medieval period, resulting from a series of military successes against Austria. Swiss independence from the Holy Roman Empire was formally recognized in the Peace of Westphalia in 1648. The country has a history of armed neutrality going back to the Reformation, it has not been in a state of war internationally since 1815, nevertheless, it pursues an active foreign policy and is frequently involved in peace-building processes around the world. In addition to being the birthplace of the Red Cross, Switzerland is home to international organisations. On the European level, it is a member of the European Free Trade Association. However, it participates in the Schengen Area and the European Single Market through bilateral treaties, spanning the intersection of Germanic and Romance Europe, Switzerland comprises four main linguistic and cultural regions, German, French, Italian and Romansh. Due to its diversity, Switzerland is known by a variety of native names, Schweiz, Suisse, Svizzera. On coins and stamps, Latin is used instead of the four living languages, Switzerland is one of the most developed countries in the world, with the highest nominal wealth per adult and the eighth-highest per capita gross domestic product according to the IMF. Zürich and Geneva have each been ranked among the top cities in the world in terms of quality of life, with the former ranked second globally, according to Mercer. The English name Switzerland is a compound containing Switzer, a term for the Swiss. The English adjective Swiss is a loan from French Suisse, also in use since the 16th century. The name Switzer is from the Alemannic Schwiizer, in origin an inhabitant of Schwyz and its associated territory, the Swiss began to adopt the name for themselves after the Swabian War of 1499, used alongside the term for Confederates, Eidgenossen, used since the 14th century. The data code for Switzerland, CH, is derived from Latin Confoederatio Helvetica. The toponym Schwyz itself was first attested in 972, as Old High German Suittes, ultimately related to swedan ‘to burn’

42.
Turkey
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Turkey, officially the Republic of Turkey, is a transcontinental country in Eurasia, mainly in Anatolia in Western Asia, with a smaller portion on the Balkan peninsula in Southeast Europe. Turkey is a democratic, secular, unitary, parliamentary republic with a cultural heritage. The country is encircled by seas on three sides, the Aegean Sea is to the west, the Black Sea to the north, and the Mediterranean Sea to the south. The Bosphorus, the Sea of Marmara, and the Dardanelles, Ankara is the capital while Istanbul is the countrys largest city and main cultural and commercial centre. Approximately 70-80% of the countrys citizens identify themselves as ethnic Turks, other ethnic groups include legally recognised and unrecognised minorities. Kurds are the largest ethnic minority group, making up approximately 20% of the population, the area of Turkey has been inhabited since the Paleolithic by various ancient Anatolian civilisations, as well as Assyrians, Greeks, Thracians, Phrygians, Urartians and Armenians. After Alexander the Greats conquest, the area was Hellenized, a process continued under the Roman Empire. The Seljuk Sultanate of Rûm ruled Anatolia until the Mongol invasion in 1243, the empire reached the peak of its power in the 16th century, especially during the reign of Suleiman the Magnificent. During the war, the Ottoman government committed genocides against its Armenian, Assyrian, following the war, the conglomeration of territories and peoples that formerly comprised the Ottoman Empire was partitioned into several new states. Turkey is a member of the UN, an early member of NATO. Turkeys growing economy and diplomatic initiatives have led to its recognition as a regional power while her location has given it geopolitical, the name of Turkey is based on the ethnonym Türk. The first recorded use of the term Türk or Türük as an autonym is contained in the Old Turkic inscriptions of the Göktürks of Central Asia, the English name Turkey first appeared in the late 14th century and is derived from Medieval Latin Turchia. Similarly, the medieval Khazar Empire, a Turkic state on the shores of the Black. The medieval Arabs referred to the Mamluk Sultanate as al-Dawla al-Turkiyya, the Ottoman Empire was sometimes referred to as Turkey or the Turkish Empire among its European contemporaries. The Anatolian peninsula, comprising most of modern Turkey, is one of the oldest permanently settled regions in the world, various ancient Anatolian populations have lived in Anatolia, from at least the Neolithic period until the Hellenistic period. Many of these peoples spoke the Anatolian languages, a branch of the larger Indo-European language family, in fact, given the antiquity of the Indo-European Hittite and Luwian languages, some scholars have proposed Anatolia as the hypothetical centre from which the Indo-European languages radiated. The European part of Turkey, called Eastern Thrace, has also been inhabited since at least forty years ago. It is the largest and best-preserved Neolithic site found to date, the settlement of Troy started in the Neolithic Age and continued into the Iron Age

43.
Russia
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Russia, also officially the Russian Federation, is a country in Eurasia. The European western part of the country is more populated and urbanised than the eastern. Russias capital Moscow is one of the largest cities in the world, other urban centers include Saint Petersburg, Novosibirsk, Yekaterinburg, Nizhny Novgorod. Extending across the entirety of Northern Asia and much of Eastern Europe, Russia spans eleven time zones and incorporates a range of environments. It shares maritime borders with Japan by the Sea of Okhotsk, the East Slavs emerged as a recognizable group in Europe between the 3rd and 8th centuries AD. Founded and ruled by a Varangian warrior elite and their descendants, in 988 it adopted Orthodox Christianity from the Byzantine Empire, beginning the synthesis of Byzantine and Slavic cultures that defined Russian culture for the next millennium. Rus ultimately disintegrated into a number of states, most of the Rus lands were overrun by the Mongol invasion. The Soviet Union played a role in the Allied victory in World War II. The Soviet era saw some of the most significant technological achievements of the 20th century, including the worlds first human-made satellite and the launching of the first humans in space. By the end of 1990, the Soviet Union had the second largest economy, largest standing military in the world. It is governed as a federal semi-presidential republic, the Russian economy ranks as the twelfth largest by nominal GDP and sixth largest by purchasing power parity in 2015. Russias extensive mineral and energy resources are the largest such reserves in the world, making it one of the producers of oil. The country is one of the five recognized nuclear weapons states and possesses the largest stockpile of weapons of mass destruction, Russia is a great power as well as a regional power and has been characterised as a potential superpower. The name Russia is derived from Rus, a state populated mostly by the East Slavs. However, this name became more prominent in the later history, and the country typically was called by its inhabitants Русская Земля. In order to distinguish this state from other states derived from it, it is denoted as Kievan Rus by modern historiography, an old Latin version of the name Rus was Ruthenia, mostly applied to the western and southern regions of Rus that were adjacent to Catholic Europe. The current name of the country, Россия, comes from the Byzantine Greek designation of the Kievan Rus, the standard way to refer to citizens of Russia is Russians in English and rossiyane in Russian. There are two Russian words which are translated into English as Russians

44.
Norway
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The Antarctic Peter I Island and the sub-Antarctic Bouvet Island are dependent territories and thus not considered part of the Kingdom. Norway also lays claim to a section of Antarctica known as Queen Maud Land, until 1814, the kingdom included the Faroe Islands, Greenland, and Iceland. It also included Isle of Man until 1266, Shetland and Orkney until 1468, Norway has a total area of 385,252 square kilometres and a population of 5,258,317. The country shares a long border with Sweden. Norway is bordered by Finland and Russia to the north-east, Norway has an extensive coastline, facing the North Atlantic Ocean and the Barents Sea. King Harald V of the Dano-German House of Glücksburg is the current King of Norway, erna Solberg became Prime Minister in 2013, replacing Jens Stoltenberg. A constitutional monarchy, Norway divides state power between the Parliament, the Cabinet and the Supreme Court, as determined by the 1814 Constitution, the kingdom is established as a merger of several petty kingdoms. By the traditional count from the year 872, the kingdom has existed continuously for 1,144 years, Norway has both administrative and political subdivisions on two levels, counties and municipalities. The Sámi people have an amount of self-determination and influence over traditional territories through the Sámi Parliament. Norway maintains close ties with the European Union and the United States, the country maintains a combination of market economy and a Nordic welfare model with universal health care and a comprehensive social security system. Norway has extensive reserves of petroleum, natural gas, minerals, lumber, seafood, the petroleum industry accounts for around a quarter of the countrys gross domestic product. On a per-capita basis, Norway is the worlds largest producer of oil, the country has the fourth-highest per capita income in the world on the World Bank and IMF lists. On the CIAs GDP per capita list which includes territories and some regions, from 2001 to 2006, and then again from 2009 to 2017, Norway had the highest Human Development Index ranking in the world. It also has the highest inequality-adjusted ranking, Norway ranks first on the World Happiness Report, the OECD Better Life Index, the Index of Public Integrity and the Democracy Index. Norway has two names, Noreg in Nynorsk and Norge in Bokmål. The name Norway comes from the Old English word Norðrveg mentioned in 880, meaning way or way leading to the north. In contrasting with suðrvegar southern way for Germany, and austrvegr eastern way for the Baltic, the Anglo-Saxon of Britain also referred to the kingdom of Norway in 880 as Norðmanna land. This was the area of Harald Fairhair, the first king of Norway, and because of him

45.
Foreign direct investment
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A foreign direct investment is an investment in the form of a controlling ownership in a business in one country by an entity based in another country. It is thus distinguished from foreign investment by a notion of direct control. Broadly, foreign direct investment includes mergers and acquisitions, building new facilities, reinvesting profits earned from overseas operations and intra company loans. In a narrow sense, foreign direct investment refers just to building new facility, FDI is the sum of equity capital, other long-term capital, and short-term capital as shown the balance of payments. FDI usually involves participation in management, joint-venture, transfer of technology, stock of FDI is the net cumulative FDI for any given period. Direct investment excludes investment through purchase of shares, FDI is one example of international factor movements. A foreign direct investment is an ownership in a business enterprise in one country by an entity based in another country. Foreign direct investment is distinguished from foreign investment, a passive investment in the securities of another country such as public stocks and bonds. Moreover, control of technology, management, even crucial inputs can confer de facto control, for example, Joe S. Bain only explained the internationalization challenge through three main principles, absolute cost advantages, product differentiation advantages and economies of scale. Furthermore, the theories were created under the assumption of the existence of perfect competition. Facing the challenges of his predecessors, Hymer focused his theory on filling the gaps regarding international investment, the theory proposed by the author approaches international investment from a different and more firm-specific point of view. Furthermore, Hymer proceeds to criticize the neoclassical theories, stating that the theory of capital movements cannot explain international production. Moreover, he clarifies that FDI is not necessarily a movement of funds from a country to a host country. In contrast, if interest rates were the motive for international investment. Another observation made by Hymer went against what was maintained by the neoclassical theories, in fact, foreign direct investment can be financed through loans obtained in the host country, payments in exchange for equity, and other methods. Further studies attempted to explain how firms could monetize these advantages in the form of licenses, removal of conflicts, conflict arises if a firm is already operating in foreign market or looking to expand its operations within the same market. He proposes that the solution for this hurdle arose in the form of collusion, however, it must be taken into account that a reduction in conflict through acquisition of control of operations will increase the market imperfections. The extent to which a company can mitigate risk depends on how well a firm can formulate an internationalization strategy taking these levels of decision into account

The European Single Market, Internal Market or Common Market is a single market which seeks to guarantee the free …

The Berlin Wall (1961-1989) symbolised a bordered globe, where citizens of the Soviet Union had no right to leave, and few could enter. The EU has progressively dismantled barriers to free movement, consistent with economic development.

All EU citizens have the right to child support, education, social security and other assistance in EU member states. To ensure people contribute fairly to the communities they live in, there can be qualifying periods of residence and work up to five years.

Industry is the production of goods or related services within an economy. The major source of revenue of a group or …

GDP composition of sector and labour force by occupation in the form of any component to economy. The green, red, and blue components of the colours of the countries represent the percentages for the agriculture, industry, and services sectors, respectively.

Optimized logistics have enabled the rapid development of industry. Here is a thermal oxidizer during the industrial shipping process.